Spring Boot 实战指南(三):配置事务,整合Elasticsearch、Swagger、Redis、RabbitMQ

文章目录

  • 一、配置事务
    • 依赖
    • 使用注解
  • 二、Elasticsearch
    • 创建项目
    • 配置maven
    • 完善依赖
    • es连接配置
    • 实体映射
    • repository
    • service
    • controller
  • 三、swagger
    • 依赖
    • 启动类
    • 路径匹配配置
    • 配置类
    • controller注解
  • 四、Redis
    • 依赖
    • yml配置
    • 配置类
    • 封装redisTamplate
    • 使用
  • 五、RabbitMQ
    • 依赖
    • yml配置
    • 配置类
    • 生产者代码
    • 消费者代码
    • 测试一下

一、配置事务

依赖

        <!-- 事务管理依赖以下二选一即可-->
        <!-- 用来开启事务使用 但是mybatis-plus-boot-starter默认引入了sprint-tx -->
<!--        <dependency>-->
<!--            <groupId>org.springframework</groupId>-->
<!--            <artifactId>spring-tx</artifactId>-->
<!--        </dependency>-->

        <!-- springboot整合的事务开启依赖,无论是mybatis或是mybatis-plus都适用 -->
<!--        <dependency>-->
<!--            <groupId>org.springframework.boot</groupId>-->
<!--            <artifactId>spring-boot-starter-aop</artifactId>-->
<!--        </dependency>-->

使用注解

在启动类上添加注解:

@EnableTransactionManagement //开启事务

在需要开启事务的类或者方法上使用注解,前者表示该类的所有方法都开启事务,后者表示只对具体的方法开启事务:

@Transactional(rollbackFor = Exception.class)

如果括号里不带参数表示仅在遇到运行时异常时才回滚,而写了rollbackFor = Exception.class表示遇到非运行时异常也回滚。

二、Elasticsearch

官方文档
Elasticsearch教程

自己搭建了一个简单的demo,仓库在这里,可以直接运行,不过需要自行安装Elasticsearch7.16.3并在application.yml改一下url。

创建项目

用spring initializr 快速搭建一个项目,sdk选的1.8,java版本是8。

spring boot版本选择2.7.x。

勾选这些依赖:

Spring Boot 实战指南(三):配置事务,整合Elasticsearch、Swagger、Redis、RabbitMQ_第1张图片

配置maven

file > settings > build,execution,deployment > build tools > maven

Spring Boot 实战指南(三):配置事务,整合Elasticsearch、Swagger、Redis、RabbitMQ_第2张图片

完善依赖

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.2</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>tracy</groupId>
    <artifactId>claimnet-client</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>claimnet-client</name>
    <description>claimnet客户端</description>
    <properties>
        <java.version>8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-elasticsearch</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

es连接配置

application.yml

spring:
  elasticsearch:
    rest:
      uris: http://es服务器ip:9200

实体映射

package tracy.claimnetclient.entity;

import lombok.Data;
import org.springframework.data.annotation.Id;
import org.springframework.data.elasticsearch.annotations.Document;
import org.springframework.data.elasticsearch.annotations.Field;
import org.springframework.data.elasticsearch.annotations.FieldType;

import java.io.Serializable;

@Data
@Document(indexName = "text",createIndex = false) //如果Elasticsearch库中原本不存在这个索引的数据,这里可以写true
public class Text implements Serializable {
    @Id //将下面这个属性标记为id
    @Field(name = "id",type = FieldType.Text)
    String id;
    @Field(name = "application_no",type = FieldType.Text)
    String applicationNo;
    @Field(name = "content",type = FieldType.Text)
    String content;
    @Field(name = "date",type = FieldType.Text)
    String date;
    @Field(name = "entity",type = FieldType.Text)
    String entity;
    @Field(name = "feature",type = FieldType.Text)
    String feature;
}

注意,这些属性和Elasticsearch数据库中对应文档中的属性是一一对应的。

repository

ElasticsearchRepository中提供了很多线程的方法,可以满足简单的增删改查需求:

package tracy.claimnetclient.repository;

import org.springframework.data.domain.PageRequest;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import tracy.claimnetclient.entity.Text;
import java.util.List;

public interface TextRepository extends ElasticsearchRepository<Text,String> {//这里的String表示id的类型
	//PageRequest用来实现分页查询
    List<Text> findTextsByIdOrApplicationNoOrContent(String id, String app, String keyword, PageRequest pageRequest);
}

service

接口:

package tracy.claimnetclient.service;

import tracy.claimnetclient.entity.Text;
import tracy.claimnetclient.util.PairResult;

import java.util.List;

public interface TextService {
    List<Text> text(String keyword,
                    Integer curPage,
                    Integer pageSize);
}

实现:

package tracy.claimnetclient.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.PageRequest;
import org.springframework.stereotype.Service;
import tracy.claimnetclient.entity.Text;
import tracy.claimnetclient.repository.TextRepository;
import tracy.claimnetclient.util.PairResult;

import java.util.Arrays;
import java.util.List;

@Service
public class TextServiceImpl implements TextService{
    @Autowired
    private TextRepository textRepository;

    @Override
    public List<Text> text(String keyword, Integer curPage, Integer pageSize) {
        if(curPage==null)curPage=1;
        if(pageSize==null)pageSize=10;
        return textRepository.findTextsByIdOrApplicationNoOrContent(keyword,keyword,keyword, PageRequest.of(curPage-1,pageSize));
    }
}

controller

package tracy.claimnetclient.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import tracy.claimnetclient.entity.Claim;
import tracy.claimnetclient.entity.Text;
import tracy.claimnetclient.service.ClaimService;
import tracy.claimnetclient.service.TextService;

import java.util.List;

@RestController
@RequestMapping("/search")
public class SearchController {
    @Autowired
    private TextService textService;

    @GetMapping("/text/{keyword}")
    public List<Text> text(@PathVariable("keyword")String keyword,
                           Integer curPage,
                           Integer pageSize) {
        return textService.text(keyword,curPage,pageSize);
    }
}

【OK】

三、swagger

参考

依赖

 <!-- 引入swagger相关的jar -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-boot-starter</artifactId>
            <version>3.0.0</version>
        </dependency>

启动类

类上添加注解@EnableOpenApi

路径匹配配置

application.yml

spring:
  mvc:
    pathmatch:
      matching-strategy: ant_path_matcher

配置类

package tracy.claimnetclient.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.service.Contact;
import springfox.documentation.service.VendorExtension;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import java.util.ArrayList;

@Configuration
public class SwaggerConfiguration {
    @Bean
    public Docket docket() {
        //这里要配置controller包
        return new Docket(DocumentationType.OAS_30)
                .select().apis(RequestHandlerSelectors.basePackage("tracy.claimnetclient.controller"))
                .paths(PathSelectors.any()).build()
                .apiInfo(setApiInfo());
    }
    private ApiInfo setApiInfo() {
        //作者信息
        Contact contact = new Contact("tracy",
                "https://blog.csdn.net/Tracycoder?spm=1011.2415.3001.5343",
                "[email protected]");
        //项目描述
        ApiInfo info = new ApiInfo("Claimnet-client Restful Api", "", "v1.0",
                "https://blog.csdn.net/Tracycoder?spm=1011.2415.3001.5343", contact,
                "Apache 2.0", "", new ArrayList<VendorExtension>());
        return info;
    }
}

controller注解

使用类、方法、参数注解:

package tracy.claimnetclient.controller;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import tracy.claimnetclient.entity.Claim;
import tracy.claimnetclient.entity.Text;
import tracy.claimnetclient.service.ClaimService;
import tracy.claimnetclient.service.TextService;

import java.util.List;

@Api(tags = "检索模块") 
@RestController
@RequestMapping("/search")
public class SearchController {
    @Autowired
    private TextService textService;
    @Autowired
    private ClaimService claimService;

    @ApiOperation(value = "根据id、申请号、内容查询text索引文档", notes = "api/search/text", response = List.class)
    @GetMapping("/text/{keyword}")
    public List<Text> text(@ApiParam(value = "关键词", required = true) @PathVariable("keyword")String keyword,
                           @ApiParam(value = "当前页码") Integer curPage,
                           @ApiParam(value = "页大小") Integer pageSize) {
        return textService.text(keyword,curPage,pageSize);
    }
}

最后,启动项目,访问http://127.0.0.1:8080/swagger-ui/index.html。

四、Redis

依赖

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
            <version>2.5.9</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.kie.modules/com-fasterxml-jackson -->
        <dependency>
            <groupId>org.kie.modules</groupId>
            <artifactId>com-fasterxml-jackson</artifactId>
            <version>6.5.0.Final</version>
            <type>pom</type>
        </dependency>

yml配置

spring:
  redis:
    host: ip地址
    database: 0
    port: 6379

配置类

package com.yy.myconfig;
 
import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
 
/**
 * 自定义一个redis template模板
 */
@Configuration
public class RedisConfig {
    @Bean
    @SuppressWarnings("all")
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {
        //为了使开发方便,直接使用
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(factory);
 
        //Json序列化配置
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(objectMapper);
 
        //string的序列化
        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
 
        //key采用string的序列化方式
        template.setKeySerializer(stringRedisSerializer);
        //hash的key也是用string的序列化方式
        template.setHashKeySerializer(stringRedisSerializer);
        //value序列化方式采用jackson
        template.setValueSerializer(jackson2JsonRedisSerializer);
        //hash的value序列化方式采用jackson
        template.setHashValueSerializer(jackson2JsonRedisSerializer);
 
        template.afterPropertiesSet();
 
        return template;
    }
}

封装redisTamplate

代码来自->

package tracy.client.util;

import org.springframework.data.redis.connection.DataType;
import org.springframework.data.redis.core.*;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.sql.Date;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;

@Component
public class RedisUtil {
    @Autowired
    private RedisTemplate<String, Object> redisTemplate;

    /** -------------------key相关操作--------------------- */

    /**
     * 删除key
     *
     * @param key
     */
    public void delete(String key) {
        redisTemplate.delete(key);
    }

    /**
     * 批量删除key
     *
     * @param keys
     */
    public void delete(Collection<String> keys) {
        redisTemplate.delete(keys);
    }

    /**
     * 序列化key
     *
     * @param key
     * @return
     */
    public byte[] dump(String key) {
        return redisTemplate.dump(key);
    }

    /**
     * 是否存在key
     *
     * @param key
     * @return
     */
    public Boolean hasKey(String key) {
        return redisTemplate.hasKey(key);
    }

    /**
     * 设置过期时间
     *
     * @param key
     * @param timeout
     * @param unit
     * @return
     */
    public Boolean expire(String key, long timeout, TimeUnit unit) {
        return redisTemplate.expire(key, timeout, unit);
    }

    /**
     * 设置过期时间
     *
     * @param key
     * @param date
     * @return
     */
    public Boolean expireAt(String key, Date date) {
        return redisTemplate.expireAt(key, date);
    }

    /**
     * 查找匹配的key
     *
     * @param pattern
     * @return
     */
    public Set<String> keys(String pattern) {
        return redisTemplate.keys(pattern);
    }

    /**
     * 将当前数据库的 key 移动到给定的数据库 db 当中
     *
     * @param key
     * @param dbIndex
     * @return
     */
    public Boolean move(String key, int dbIndex) {
        return redisTemplate.move(key, dbIndex);
    }

    /**
     * 移除 key 的过期时间,key 将持久保持
     *
     * @param key
     * @return
     */
    public Boolean persist(String key) {
        return redisTemplate.persist(key);
    }

    /**
     * 返回 key 的剩余的过期时间
     *
     * @param key
     * @param unit
     * @return
     */
    public Long getExpire(String key, TimeUnit unit) {
        return redisTemplate.getExpire(key, unit);
    }

    /**
     * 返回 key 的剩余的过期时间
     *
     * @param key
     * @return
     */
    public Long getExpire(String key) {
        return redisTemplate.getExpire(key);
    }

    /**
     * 从当前数据库中随机返回一个 key
     *
     * @return
     */
    public String randomKey() {
        return (String) redisTemplate.randomKey();
    }

    /**
     * 修改 key 的名称
     *
     * @param oldKey
     * @param newKey
     */
    public void rename(String oldKey, String newKey) {
        redisTemplate.rename(oldKey, newKey);
    }

    /**
     * 仅当 newkey 不存在时,将 oldKey 改名为 newkey
     *
     * @param oldKey
     * @param newKey
     * @return
     */
    public Boolean renameIfAbsent(String oldKey, String newKey) {
        return redisTemplate.renameIfAbsent(oldKey, newKey);
    }

    /**
     * 返回 key 所储存的值的类型
     *
     * @param key
     * @return
     */
    public DataType type(String key) {
        return redisTemplate.type(key);
    }

    /** -------------------string相关操作--------------------- */

    /**
     * 设置指定 key 的值
     *
     * @param key
     * @param value
     */
    public void set(String key, String value) {
        redisTemplate.opsForValue().set(key, value);
    }

    /**
     * 获取指定 key 的值
     *
     * @param key
     * @return
     */
    public String get(String key) {
        return (String) redisTemplate.opsForValue().get(key);
    }

    /**
     * 返回 key 中字符串值的子字符
     *
     * @param key
     * @param start
     * @param end
     * @return
     */
    public String getRange(String key, long start, long end) {
        return redisTemplate.opsForValue().get(key, start, end);
    }

    /**
     * 将给定 key 的值设为 value ,并返回 key 的旧值(old value)
     *
     * @param key
     * @param value
     * @return
     */
    public String getAndSet(String key, String value) {
        return (String) redisTemplate.opsForValue().getAndSet(key, value);
    }

    /**
     * 对 key 所储存的字符串值,获取指定偏移量上的位(bit)
     *
     * @param key
     * @param offset
     * @return
     */
    public Boolean getBit(String key, long offset) {
        return redisTemplate.opsForValue().getBit(key, offset);
    }

    /**
     * 批量获取
     *
     * @param keys
     * @return
     */
    public List<Object> multiGet(Collection<String> keys) {
        return redisTemplate.opsForValue().multiGet(keys);
    }

    /**
     * 设置ASCII码, 字符串'a'的ASCII码是97, 转为二进制是'01100001', 此方法是将二进制第offset位值变为value
     *
     * @param key   位置
     * @param value 值,true为1, false为0
     * @return
     */
    public boolean setBit(String key, long offset, boolean value) {
        return redisTemplate.opsForValue().setBit(key, offset, value);
    }

    /**
     * 将值 value 关联到 key ,并将 key 的过期时间设为 timeout
     *
     * @param key
     * @param value
     * @param timeout 过期时间
     * @param unit    时间单位, 天:TimeUnit.DAYS 小时:TimeUnit.HOURS 分钟:TimeUnit.MINUTES
     *                秒:TimeUnit.SECONDS 毫秒:TimeUnit.MILLISECONDS
     */
    public void setEx(String key, String value, long timeout, TimeUnit unit) {
        redisTemplate.opsForValue().set(key, value, timeout, unit);
    }

    /**
     * 只有在 key 不存在时设置 key 的值
     *
     * @param key
     * @param value
     * @return 之前已经存在返回false, 不存在返回true
     */
    public boolean setIfAbsent(String key, String value) {
        return redisTemplate.opsForValue().setIfAbsent(key, value);
    }

    /**
     * 用 value 参数覆写给定 key 所储存的字符串值,从偏移量 offset 开始
     *
     * @param key
     * @param value
     * @param offset 从指定位置开始覆写
     */
    public void setRange(String key, String value, long offset) {
        redisTemplate.opsForValue().set(key, value, offset);
    }

    /**
     * 获取字符串的长度
     *
     * @param key
     * @return
     */
    public Long size(String key) {
        return redisTemplate.opsForValue().size(key);
    }

    /**
     * 批量添加
     *
     * @param maps
     */
    public void multiSet(Map<String, String> maps) {
        redisTemplate.opsForValue().multiSet(maps);
    }

    /**
     * 同时设置一个或多个 key-value 对,当且仅当所有给定 key 都不存在
     *
     * @param maps
     * @return 之前已经存在返回false, 不存在返回true
     */
    public boolean multiSetIfAbsent(Map<String, String> maps) {
        return redisTemplate.opsForValue().multiSetIfAbsent(maps);
    }

    /**
     * 增加(自增长), 负数则为自减
     *
     * @param key
     * @return
     */
    public Long incrBy(String key, long increment) {
        return redisTemplate.opsForValue().increment(key, increment);
    }

    /**
     * @param key
     * @return
     */
    public Double incrByFloat(String key, double increment) {
        return redisTemplate.opsForValue().increment(key, increment);
    }

    /**
     * 追加到末尾
     *
     * @param key
     * @param value
     * @return
     */
    public Integer append(String key, String value) {
        return redisTemplate.opsForValue().append(key, value);
    }

    /** -------------------hash相关操作------------------------- */

    /**
     * 获取存储在哈希表中指定字段的值
     *
     * @param key
     * @param field
     * @return
     */
    public Object hGet(String key, String field) {
        return redisTemplate.opsForHash().get(key, field);
    }

    /**
     * 获取所有给定字段的值
     *
     * @param key
     * @return
     */
    public Map<Object, Object> hGetAll(String key) {
        return redisTemplate.opsForHash().entries(key);
    }

    /**
     * 获取所有给定字段的值
     *
     * @param key
     * @param fields
     * @return
     */
    public List<Object> hMultiGet(String key, Collection<Object> fields) {
        return redisTemplate.opsForHash().multiGet(key, fields);
    }

    public void hPut(String key, String hashKey, String value) {
        redisTemplate.opsForHash().put(key, hashKey, value);
    }

    public void hPutAll(String key, Map<String, String> maps) {
        redisTemplate.opsForHash().putAll(key, maps);
    }

    /**
     * 仅当hashKey不存在时才设置
     *
     * @param key
     * @param hashKey
     * @param value
     * @return
     */
    public Boolean hPutIfAbsent(String key, String hashKey, String value) {
        return redisTemplate.opsForHash().putIfAbsent(key, hashKey, value);
    }

    /**
     * 删除一个或多个哈希表字段
     *
     * @param key
     * @param fields
     * @return
     */
    public Long hDelete(String key, Object... fields) {
        return redisTemplate.opsForHash().delete(key, fields);
    }

    /**
     * 查看哈希表 key 中,指定的字段是否存在
     *
     * @param key
     * @param field
     * @return
     */
    public boolean hExists(String key, String field) {
        return redisTemplate.opsForHash().hasKey(key, field);
    }

    /**
     * 为哈希表 key 中的指定字段的整数值加上增量 increment
     *
     * @param key
     * @param field
     * @param increment
     * @return
     */
    public Long hIncrBy(String key, Object field, long increment) {
        return redisTemplate.opsForHash().increment(key, field, increment);
    }

    /**
     * 为哈希表 key 中的指定字段的整数值加上增量 increment
     *
     * @param key
     * @param field
     * @param delta
     * @return
     */
    public Double hIncrByFloat(String key, Object field, double delta) {
        return redisTemplate.opsForHash().increment(key, field, delta);
    }

    /**
     * 获取所有哈希表中的字段
     *
     * @param key
     * @return
     */
    public Set<Object> hKeys(String key) {
        return redisTemplate.opsForHash().keys(key);
    }

    /**
     * 获取哈希表中字段的数量
     *
     * @param key
     * @return
     */
    public Long hSize(String key) {
        return redisTemplate.opsForHash().size(key);
    }

    /**
     * 获取哈希表中所有值
     *
     * @param key
     * @return
     */
    public List<Object> hValues(String key) {
        return redisTemplate.opsForHash().values(key);
    }

    /**
     * 迭代哈希表中的键值对
     *
     * @param key
     * @param options
     * @return
     */
    public Cursor<Map.Entry<Object, Object>> hScan(String key, ScanOptions options) {
        return redisTemplate.opsForHash().scan(key, options);
    }

    /** ------------------------list相关操作---------------------------- */

    /**
     * 通过索引获取列表中的元素
     *
     * @param key
     * @param index
     * @return
     */
    public String lIndex(String key, long index) {
        return (String) redisTemplate.opsForList().index(key, index);
    }

    /**
     * 获取列表指定范围内的元素
     *
     * @param key
     * @param start 开始位置, 0是开始位置
     * @param end   结束位置, -1返回所有
     * @return
     */
    public List<Object> lRange(String key, long start, long end) {
        return redisTemplate.opsForList().range(key, start, end);
    }

    /**
     * 存储在list头部
     *
     * @param key
     * @param value
     * @return
     */
    public Long lLeftPush(String key, String value) {
        return redisTemplate.opsForList().leftPush(key, value);
    }

    /**
     * @param key
     * @param value
     * @return
     */
    public Long lLeftPushAll(String key, String... value) {
        return redisTemplate.opsForList().leftPushAll(key, value);
    }

    /**
     * @param key
     * @param value
     * @return
     */
    public Long lLeftPushAll(String key, Collection<String> value) {
        return redisTemplate.opsForList().leftPushAll(key, value);
    }

    /**
     * 当list存在的时候才加入
     *
     * @param key
     * @param value
     * @return
     */
    public Long lLeftPushIfPresent(String key, String value) {
        return redisTemplate.opsForList().leftPushIfPresent(key, value);
    }

    /**
     * 如果pivot存在,再pivot前面添加
     *
     * @param key
     * @param pivot
     * @param value
     * @return
     */
    public Long lLeftPush(String key, String pivot, String value) {
        return redisTemplate.opsForList().leftPush(key, pivot, value);
    }

    /**
     * @param key
     * @param value
     * @return
     */
    public Long lRightPush(String key, String value) {
        return redisTemplate.opsForList().rightPush(key, value);
    }

    /**
     * @param key
     * @param value
     * @return
     */
    public Long lRightPushAll(String key, String... value) {
        return redisTemplate.opsForList().rightPushAll(key, value);
    }

    /**
     * @param key
     * @param value
     * @return
     */
    public Long lRightPushAll(String key, Collection<String> value) {
        return redisTemplate.opsForList().rightPushAll(key, value);
    }

    /**
     * 为已存在的列表添加值
     *
     * @param key
     * @param value
     * @return
     */
    public Long lRightPushIfPresent(String key, String value) {
        return redisTemplate.opsForList().rightPushIfPresent(key, value);
    }

    /**
     * 在pivot元素的右边添加值
     *
     * @param key
     * @param pivot
     * @param value
     * @return
     */
    public Long lRightPush(String key, String pivot, String value) {
        return redisTemplate.opsForList().rightPush(key, pivot, value);
    }

    /**
     * 通过索引设置列表元素的值
     *
     * @param key
     * @param index 位置
     * @param value
     */
    public void lSet(String key, long index, String value) {
        redisTemplate.opsForList().set(key, index, value);
    }

    /**
     * 移出并获取列表的第一个元素
     *
     * @param key
     * @return 删除的元素
     */
    public String lLeftPop(String key) {
        return (String) redisTemplate.opsForList().leftPop(key);
    }

    /**
     * 移出并获取列表的第一个元素, 如果列表没有元素会阻塞列表直到等待超时或发现可弹出元素为止
     *
     * @param key
     * @param timeout 等待时间
     * @param unit    时间单位
     * @return
     */
    public String lBLeftPop(String key, long timeout, TimeUnit unit) {
        return (String) redisTemplate.opsForList().leftPop(key, timeout, unit);
    }

    /**
     * 移除并获取列表最后一个元素
     *
     * @param key
     * @return 删除的元素
     */
    public String lRightPop(String key) {
        return (String) redisTemplate.opsForList().rightPop(key);
    }

    /**
     * 移出并获取列表的最后一个元素, 如果列表没有元素会阻塞列表直到等待超时或发现可弹出元素为止
     *
     * @param key
     * @param timeout 等待时间
     * @param unit    时间单位
     * @return
     */
    public String lBRightPop(String key, long timeout, TimeUnit unit) {
        return (String) redisTemplate.opsForList().rightPop(key, timeout, unit);
    }

    /**
     * 移除列表的最后一个元素,并将该元素添加到另一个列表并返回
     *
     * @param sourceKey
     * @param destinationKey
     * @return
     */
    public String lRightPopAndLeftPush(String sourceKey, String destinationKey) {
        return (String) redisTemplate.opsForList().rightPopAndLeftPush(sourceKey,
                destinationKey);
    }

    /**
     * 从列表中弹出一个值,将弹出的元素插入到另外一个列表中并返回它; 如果列表没有元素会阻塞列表直到等待超时或发现可弹出元素为止
     *
     * @param sourceKey
     * @param destinationKey
     * @param timeout
     * @param unit
     * @return
     */
    public String lBRightPopAndLeftPush(String sourceKey, String destinationKey,
                                        long timeout, TimeUnit unit) {
        return (String) redisTemplate.opsForList().rightPopAndLeftPush(sourceKey,
                destinationKey, timeout, unit);
    }

    /**
     * 删除集合中值等于value得元素
     *
     * @param key
     * @param index index=0, 删除所有值等于value的元素; index>0, 从头部开始删除第一个值等于value的元素;
     *              index<0, 从尾部开始删除第一个值等于value的元素;
     * @param value
     * @return
     */
    public Long lRemove(String key, long index, String value) {
        return redisTemplate.opsForList().remove(key, index, value);
    }

    /**
     * 裁剪list
     *
     * @param key
     * @param start
     * @param end
     */
    public void lTrim(String key, long start, long end) {
        redisTemplate.opsForList().trim(key, start, end);
    }

    /**
     * 获取列表长度
     *
     * @param key
     * @return
     */
    public Long lLen(String key) {
        return redisTemplate.opsForList().size(key);
    }

    /** --------------------set相关操作-------------------------- */

    /**
     * set添加元素
     *
     * @param key
     * @param values
     * @return
     */
    public Long sAdd(String key, String... values) {
        return redisTemplate.opsForSet().add(key, values);
    }

    /**
     * set移除元素
     *
     * @param key
     * @param values
     * @return
     */
    public Long sRemove(String key, Object... values) {
        return redisTemplate.opsForSet().remove(key, values);
    }

    /**
     * 移除并返回集合的一个随机元素
     *
     * @param key
     * @return
     */
    public String sPop(String key) {
        return (String) redisTemplate.opsForSet().pop(key);
    }

    /**
     * 将元素value从一个集合移到另一个集合
     *
     * @param key
     * @param value
     * @param destKey
     * @return
     */
    public Boolean sMove(String key, String value, String destKey) {
        return redisTemplate.opsForSet().move(key, value, destKey);
    }

    /**
     * 获取集合的大小
     *
     * @param key
     * @return
     */
    public Long sSize(String key) {
        return redisTemplate.opsForSet().size(key);
    }

    /**
     * 判断集合是否包含value
     *
     * @param key
     * @param value
     * @return
     */
    public Boolean sIsMember(String key, Object value) {
        return redisTemplate.opsForSet().isMember(key, value);
    }

    /**
     * 获取两个集合的交集
     *
     * @param key
     * @param otherKey
     * @return
     */
    public Set<Object> sIntersect(String key, String otherKey) {
        return redisTemplate.opsForSet().intersect(key, otherKey);
    }

    /**
     * 获取key集合与多个集合的交集
     *
     * @param key
     * @param otherKeys
     * @return
     */
    public Set<Object> sIntersect(String key, Collection<String> otherKeys) {
        return redisTemplate.opsForSet().intersect(key, otherKeys);
    }

    /**
     * key集合与otherKey集合的交集存储到destKey集合中
     *
     * @param key
     * @param otherKey
     * @param destKey
     * @return
     */
    public Long sIntersectAndStore(String key, String otherKey, String destKey) {
        return redisTemplate.opsForSet().intersectAndStore(key, otherKey,
                destKey);
    }

    /**
     * key集合与多个集合的交集存储到destKey集合中
     *
     * @param key
     * @param otherKeys
     * @param destKey
     * @return
     */
    public Long sIntersectAndStore(String key, Collection<String> otherKeys,
                                   String destKey) {
        return redisTemplate.opsForSet().intersectAndStore(key, otherKeys,
                destKey);
    }

    /**
     * 获取两个集合的并集
     *
     * @param key
     * @param otherKeys
     * @return
     */
    public Set<Object> sUnion(String key, String otherKeys) {
        return redisTemplate.opsForSet().union(key, otherKeys);
    }

    /**
     * 获取key集合与多个集合的并集
     *
     * @param key
     * @param otherKeys
     * @return
     */
    public Set<Object> sUnion(String key, Collection<String> otherKeys) {
        return redisTemplate.opsForSet().union(key, otherKeys);
    }

    /**
     * key集合与otherKey集合的并集存储到destKey中
     *
     * @param key
     * @param otherKey
     * @param destKey
     * @return
     */
    public Long sUnionAndStore(String key, String otherKey, String destKey) {
        return redisTemplate.opsForSet().unionAndStore(key, otherKey, destKey);
    }

    /**
     * key集合与多个集合的并集存储到destKey中
     *
     * @param key
     * @param otherKeys
     * @param destKey
     * @return
     */
    public Long sUnionAndStore(String key, Collection<String> otherKeys,
                               String destKey) {
        return redisTemplate.opsForSet().unionAndStore(key, otherKeys, destKey);
    }

    /**
     * 获取两个集合的差集
     *
     * @param key
     * @param otherKey
     * @return
     */
    public Set<Object> sDifference(String key, String otherKey) {
        return redisTemplate.opsForSet().difference(key, otherKey);
    }

    /**
     * 获取key集合与多个集合的差集
     *
     * @param key
     * @param otherKeys
     * @return
     */
    public Set<Object> sDifference(String key, Collection<String> otherKeys) {
        return redisTemplate.opsForSet().difference(key, otherKeys);
    }

    /**
     * key集合与otherKey集合的差集存储到destKey中
     *
     * @param key
     * @param otherKey
     * @param destKey
     * @return
     */
    public Long sDifference(String key, String otherKey, String destKey) {
        return redisTemplate.opsForSet().differenceAndStore(key, otherKey,
                destKey);
    }

    /**
     * key集合与多个集合的差集存储到destKey中
     *
     * @param key
     * @param otherKeys
     * @param destKey
     * @return
     */
    public Long sDifference(String key, Collection<String> otherKeys,
                            String destKey) {
        return redisTemplate.opsForSet().differenceAndStore(key, otherKeys,
                destKey);
    }

    /**
     * 获取集合所有元素
     *
     * @param key
     * @return
     */
    public Set<Object> setMembers(String key) {
        return redisTemplate.opsForSet().members(key);
    }

    /**
     * 随机获取集合中的一个元素
     *
     * @param key
     * @return
     */
    public String sRandomMember(String key) {
        return (String) redisTemplate.opsForSet().randomMember(key);
    }

    /**
     * 随机获取集合中count个元素
     *
     * @param key
     * @param count
     * @return
     */
    public List<Object> sRandomMembers(String key, long count) {
        return redisTemplate.opsForSet().randomMembers(key, count);
    }

    /**
     * 随机获取集合中count个元素并且去除重复的
     *
     * @param key
     * @param count
     * @return
     */
    public Set<Object> sDistinctRandomMembers(String key, long count) {
        return redisTemplate.opsForSet().distinctRandomMembers(key, count);
    }

    /**
     * @param key
     * @param options
     * @return
     */
    public Cursor<Object> sScan(String key, ScanOptions options) {
        return redisTemplate.opsForSet().scan(key, options);
    }

    /**------------------zSet相关操作--------------------------------*/

    /**
     * 添加元素,有序集合是按照元素的score值由小到大排列
     *
     * @param key
     * @param value
     * @param score
     * @return
     */
    public Boolean zAdd(String key, String value, double score) {
        return redisTemplate.opsForZSet().add(key, value, score);
    }

    /**
     * @param key
     * @param values
     * @return
     */
    public Long zAdd(String key, Set<ZSetOperations.TypedTuple<Object>> values) {
        return redisTemplate.opsForZSet().add(key, values);
    }

    /**
     * @param key
     * @param values
     * @return
     */
    public Long zRemove(String key, Object... values) {
        return redisTemplate.opsForZSet().remove(key, values);
    }

    /**
     * 增加元素的score值,并返回增加后的值
     *
     * @param key
     * @param value
     * @param delta
     * @return
     */
    public Double zIncrementScore(String key, String value, double delta) {
        return redisTemplate.opsForZSet().incrementScore(key, value, delta);
    }

    /**
     * 返回元素在集合的排名,有序集合是按照元素的score值由小到大排列
     *
     * @param key
     * @param value
     * @return 0表示第一位
     */
    public Long zRank(String key, Object value) {
        return redisTemplate.opsForZSet().rank(key, value);
    }

    /**
     * 返回元素在集合的排名,按元素的score值由大到小排列
     *
     * @param key
     * @param value
     * @return
     */
    public Long zReverseRank(String key, Object value) {
        return redisTemplate.opsForZSet().reverseRank(key, value);
    }

    /**
     * 获取集合的元素, 从小到大排序
     *
     * @param key
     * @param start 开始位置
     * @param end   结束位置, -1查询所有
     * @return
     */
    public Set<Object> zRange(String key, long start, long end) {
        return redisTemplate.opsForZSet().range(key, start, end);
    }

    /**
     * 获取集合元素, 并且把score值也获取
     *
     * @param key
     * @param start
     * @param end
     * @return
     */
    public Set<ZSetOperations.TypedTuple<Object>> zRangeWithScores(String key, long start,
                                                                   long end) {
        return redisTemplate.opsForZSet().rangeWithScores(key, start, end);
    }

    /**
     * 根据Score值查询集合元素
     *
     * @param key
     * @param min 最小值
     * @param max 最大值
     * @return
     */
    public Set<Object> zRangeByScore(String key, double min, double max) {
        return redisTemplate.opsForZSet().rangeByScore(key, min, max);
    }

    /**
     * 根据Score值查询集合元素, 从小到大排序
     *
     * @param key
     * @param min 最小值
     * @param max 最大值
     * @return
     */
    public Set<ZSetOperations.TypedTuple<Object>> zRangeByScoreWithScores(String key,
                                                                          double min, double max) {
        return redisTemplate.opsForZSet().rangeByScoreWithScores(key, min, max);
    }

    /**
     * @param key
     * @param min
     * @param max
     * @param start
     * @param end
     * @return
     */
    public Set<ZSetOperations.TypedTuple<Object>> zRangeByScoreWithScores(String key,
                                                                          double min, double max, long start, long end) {
        return redisTemplate.opsForZSet().rangeByScoreWithScores(key, min, max,
                start, end);
    }

    /**
     * 获取集合的元素, 从大到小排序
     *
     * @param key
     * @param start
     * @param end
     * @return
     */
    public Set<Object> zReverseRange(String key, long start, long end) {
        return redisTemplate.opsForZSet().reverseRange(key, start, end);
    }

    /**
     * 获取集合的元素, 从大到小排序, 并返回score值
     *
     * @param key
     * @param start
     * @param end
     * @return
     */
    public Set<ZSetOperations.TypedTuple<Object>> zReverseRangeWithScores(String key,
                                                                          long start, long end) {
        return redisTemplate.opsForZSet().reverseRangeWithScores(key, start,
                end);
    }

    /**
     * 根据Score值查询集合元素, 从大到小排序
     *
     * @param key
     * @param min
     * @param max
     * @return
     */
    public Set<Object> zReverseRangeByScore(String key, double min,
                                            double max) {
        return redisTemplate.opsForZSet().reverseRangeByScore(key, min, max);
    }

    /**
     * 根据Score值查询集合元素, 从大到小排序
     *
     * @param key
     * @param min
     * @param max
     * @return
     */
    public Set<ZSetOperations.TypedTuple<Object>> zReverseRangeByScoreWithScores(
            String key, double min, double max) {
        return redisTemplate.opsForZSet().reverseRangeByScoreWithScores(key,
                min, max);
    }

    /**
     * @param key
     * @param min
     * @param max
     * @param start
     * @param end
     * @return
     */
    public Set<Object> zReverseRangeByScore(String key, double min,
                                            double max, long start, long end) {
        return redisTemplate.opsForZSet().reverseRangeByScore(key, min, max,
                start, end);
    }

    /**
     * 根据score值获取集合元素数量
     *
     * @param key
     * @param min
     * @param max
     * @return
     */
    public Long zCount(String key, double min, double max) {
        return redisTemplate.opsForZSet().count(key, min, max);
    }

    /**
     * 获取集合大小
     *
     * @param key
     * @return
     */
    public Long zSize(String key) {
        return redisTemplate.opsForZSet().size(key);
    }

    /**
     * 获取集合大小
     *
     * @param key
     * @return
     */
    public Long zZCard(String key) {
        return redisTemplate.opsForZSet().zCard(key);
    }

    /**
     * 获取集合中value元素的score值
     *
     * @param key
     * @param value
     * @return
     */
    public Double zScore(String key, Object value) {
        return redisTemplate.opsForZSet().score(key, value);
    }

    /**
     * 移除指定索引位置的成员
     *
     * @param key
     * @param start
     * @param end
     * @return
     */
    public Long zRemoveRange(String key, long start, long end) {
        return redisTemplate.opsForZSet().removeRange(key, start, end);
    }

    /**
     * 根据指定的score值的范围来移除成员
     *
     * @param key
     * @param min
     * @param max
     * @return
     */
    public Long zRemoveRangeByScore(String key, double min, double max) {
        return redisTemplate.opsForZSet().removeRangeByScore(key, min, max);
    }

    /**
     * 获取key和otherKey的并集并存储在destKey中
     *
     * @param key
     * @param otherKey
     * @param destKey
     * @return
     */
    public Long zUnionAndStore(String key, String otherKey, String destKey) {
        return redisTemplate.opsForZSet().unionAndStore(key, otherKey, destKey);
    }

    /**
     * @param key
     * @param otherKeys
     * @param destKey
     * @return
     */
    public Long zUnionAndStore(String key, Collection<String> otherKeys,
                               String destKey) {
        return redisTemplate.opsForZSet()
                .unionAndStore(key, otherKeys, destKey);
    }

    /**
     * 交集
     *
     * @param key
     * @param otherKey
     * @param destKey
     * @return
     */
    public Long zIntersectAndStore(String key, String otherKey,
                                   String destKey) {
        return redisTemplate.opsForZSet().intersectAndStore(key, otherKey,
                destKey);
    }

    /**
     * 交集
     *
     * @param key
     * @param otherKeys
     * @param destKey
     * @return
     */
    public Long zIntersectAndStore(String key, Collection<String> otherKeys,
                                   String destKey) {
        return redisTemplate.opsForZSet().intersectAndStore(key, otherKeys,
                destKey);
    }

    /**
     * @param key
     * @param options
     * @return
     */
    public Cursor<ZSetOperations.TypedTuple<Object>> zScan(String key, ScanOptions options) {
        return redisTemplate.opsForZSet().scan(key, options);
    }

}

使用

package com.tracy.rediscache;

import com.tracy.rediscache.util.RedisUtil;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;

@SpringBootTest
class RedisCacheApplicationTests {
    @Autowired
    private RedisUtil redisUtil;


    @Test
    void contextLoads() {
        redisUtil.set("author","1213");
    }

}

五、RabbitMQ

以实现路由模式为例。

依赖

       <!-- rabbitMQ-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-amqp</artifactId>
        </dependency>
  
        <!-- json工具-->
        <dependency>
            <groupId>org.json</groupId>
            <artifactId>json</artifactId>
            <version>20211205</version>
        </dependency>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.9.0</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.12.1</version>
        </dependency>

yml配置

spring:
  application:
    name: Spring-boot-rabbitmq
  rabbitmq:
    host: rabbitmq的ip地址
    port: 5673
    username: guest
    password: guest
    listener:
      simple:
        # 表示消费者消费成功消息以后需要手工的进行签收(ack确认),默认为 auto
        acknowledge-mode: manual
        # 发送者开启 return 确认机制
        publisher-returns: true
        # 发送者开启 confirm 确认机制
        publisher-confirm-type: correlate

配置类

package tracy.manage.config;

import org.springframework.amqp.core.*;
import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.connection.CorrelationData;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class RabbitMQConfig {
 
    public static final String EXCHANGE_NAME = "direct-exchange";
    public static final String TEXT_QUEUE = "text-queue";
    public static final String CLAIM_QUEUE = "claim-queue";
    public static final String TEXT_RKEY = "text";
    public static final String CLAIM_RKEY = "claim";

    @Value("${spring.rabbitmq.host}")
    private String host;

    @Value("${spring.rabbitmq.port}")
    private int port;

    @Value("${spring.rabbitmq.username}")
    private String username;

    @Value("${spring.rabbitmq.password}")
    private String password;

    /**
     * 1.声明交换机
     */
    @Bean
    public DirectExchange directExchange() {
        /**
         * 参数说明:
         * 1. 交换机名称
         * 2. 是否持久化 true:持久化,交换机一直保留 false:不持久化,用完就删除
         * 3. 是否自动删除 false:不自动删除 true:自动删除
         */
        return new DirectExchange(EXCHANGE_NAME, true, false);
    }
 
    /**
     * 2.声明队列
     */
    @Bean
    public Queue textQueue() {
        /**
         * Queue构造函数参数说明
         * 1. 队列名
         * 2. 是否持久化 true:持久化 false:不持久化
         */
        return new Queue(TEXT_QUEUE, true);
    }

    @Bean
    public Queue claimQueue() {
        /**
         * Queue构造函数参数说明
         * 1. 队列名
         * 2. 是否持久化 true:持久化 false:不持久化
         */
        return new Queue(CLAIM_QUEUE, true);
    }

 
    /**
     * 3.队列与交换机绑定
     */
    @Bean
    public Binding textBinding() {
        return BindingBuilder.bind(textQueue()).to(directExchange()).with(TEXT_RKEY);
    }
 
    @Bean
    public Binding claimBinding() {
        return BindingBuilder.bind(claimQueue()).to(directExchange()).with(CLAIM_RKEY);
    }


    /**
     * 4.声明连接工厂
     */
    @Bean
    public ConnectionFactory connectionFactory() {
        CachingConnectionFactory connectionFactory = new CachingConnectionFactory(host,port);
        connectionFactory.setUsername(username);
        connectionFactory.setPassword(password);
        return connectionFactory;
    }

    /**
     * 5.将自定义的RabbitTemplate对象注入bean容器
     */
    @Bean
    public RabbitTemplate createRabbitTemplate(ConnectionFactory connectionFactory) {
        RabbitTemplate rabbitTemplate = new RabbitTemplate();
        rabbitTemplate.setConnectionFactory(connectionFactory);
        //设置开启消息推送结果回调
        rabbitTemplate.setMandatory(true);
        //设置ConfirmCallback回调
        rabbitTemplate.setConfirmCallback(new RabbitTemplate.ConfirmCallback() {
            @Override
            public void confirm(CorrelationData correlationData, boolean ack, String cause) {
            //这部分没写,先空在这里}
        });
        //设置ReturnCallback回调
        rabbitTemplate.setReturnCallback(new RabbitTemplate.ReturnCallback() {
            @Override
            public void returnedMessage(Message message, int replyCode, String replyText, String exchange, String routingKey) {//这部分没写,先空在这里}
        });
        return rabbitTemplate;
    }

}

生产者代码

package tracy.manage.mq;


import org.json.JSONObject;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.HashMap;


@Service
public class Producer {
    public static final String EXCHANGE_NAME = "direct-exchange";
    public static final String TEXT_RKEY = "text";
    public static final String CLAIM_RKEY = "claim";
 
    @Autowired
    private RabbitTemplate rabbitTemplate;

    public void send() {
        HashMap<String,String> map1=new HashMap<>();
        HashMap<String,String> map2=new HashMap<>();
        map1.put("message","text test");
        map2.put("message","claim test");
        String message1=new JSONObject(map1).toString();
        String message2=new JSONObject(map2).toString();
        rabbitTemplate.convertAndSend(EXCHANGE_NAME,TEXT_RKEY ,message1);
        rabbitTemplate.convertAndSend(EXCHANGE_NAME,CLAIM_RKEY,message2);
    }
}

消费者代码

我设置了两个消费者:

package tracy.manage.mq;


import com.rabbitmq.client.Channel;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Service;

import java.io.IOException;

@Service
@RabbitListener(queues = {"text-queue"}) //监听队列
public class TextConsumer {
    @RabbitHandler
    public void receive(String msg, Channel channel, Message message) throws IOException {
        try {
            System.out.println("text consumer接收到消息:"+ msg);
            //消费确认
            channel.basicAck(message.getMessageProperties().getDeliveryTag(), false);
        } catch (Exception e) {
            if (message.getMessageProperties().getRedelivered()) {
                //basicReject: 拒绝消息,与basicNack区别在于不能进行批量操作,其他用法很相似 false表示消息不再重新进入队列
                channel.basicReject(message.getMessageProperties().getDeliveryTag(), false); // 拒绝消息
            } else {
                // basicNack:表示失败确认,一般在消费消息业务异常时用到此方法,可以将消息重新投递入队列
                channel.basicNack(message.getMessageProperties().getDeliveryTag(), false, true);
            }
        }
    }

}

package tracy.manage.mq;


import com.rabbitmq.client.Channel;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Service;

import java.io.IOException;

@Service
@RabbitListener(queues = {"claim-queue"}) //监听队列
public class ClaimConsumer {
    @RabbitHandler
    public void receive(String msg, Channel channel, Message message) throws IOException {
        try {
            System.out.println("claim consumer接收到消息:"+ msg);
            //消费确认
            channel.basicAck(message.getMessageProperties().getDeliveryTag(), false);
        } catch (Exception e) {
            if (message.getMessageProperties().getRedelivered()) {
                //basicReject: 拒绝消息,与basicNack区别在于不能进行批量操作,其他用法很相似 false表示消息不再重新进入队列
                channel.basicReject(message.getMessageProperties().getDeliveryTag(), false); // 拒绝消息
            } else {
                // basicNack:表示失败确认,一般在消费消息业务异常时用到此方法,可以将消息重新投递入队列
                channel.basicNack(message.getMessageProperties().getDeliveryTag(), false, true);
            }
        }
    }

}

测试一下

在测试类中运行以下方法:

    @Test
    void testProducer() {
        producer.send();
    }

Spring Boot 实战指南(三):配置事务,整合Elasticsearch、Swagger、Redis、RabbitMQ_第3张图片

成功!

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