<!-- 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>-->
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。
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。
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:
file > settings > build,execution,deployment > build tools > maven
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>
application.yml
spring:
elasticsearch:
rest:
uris: http://es服务器ip:9200
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。
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);
}
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));
}
}
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】
参考
<!-- 引入swagger相关的jar -->
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-boot-starter</artifactId>
<version>3.0.0</version>
</dependency>
类上添加注解@EnableOpenApi
application.yml
spring:
mvc:
pathmatch:
matching-strategy: ant_path_matcher
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;
}
}
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。
<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>
spring:
redis:
host: ip地址
database: 0
port: 6379
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;
}
}
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);
}
}
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");
}
}
以实现路由模式为例。
<!-- 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>
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
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;
}
}
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);
}
}
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);
}
}
}
}
在测试类中运行以下方法:
@Test
void testProducer() {
producer.send();
}
成功!