springboot配置以及实现增删改查

1、配置

项目结构目录

创建maven项目

maven配置文件引入包

	<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.fanney</groupId>
  <artifactId>springboot</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <!-- 定义公共资源版本 -->
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.6.RELEASE</version>
    <relativePath /> 
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>
</properties>

<dependencies>
    <!-- 上边引入 parent，因此 下边无需指定版本 -->
    <!-- 包含 mvc,aop 等jar资源 -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <!-- 热部署 -->
	<dependency>
	    <groupId>org.springframework.boot</groupId>
	    <artifactId>spring-boot-devtools</artifactId>
	    <optional>true</optional>
	    <scope>true</scope>
	</dependency>
	<!-- mysql -->
	<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>5.1.40</version>
	</dependency>
	<!-- 添加oracle jdbc driver 
     <dependency>
            <groupId>com.oracle</groupId>
            <artifactId>ojdbc14</artifactId>
            <version>10.2.0.5.0</version>
     </dependency>
     -->
    <dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-data-jpa</artifactId>
	</dependency>
</dependencies>
<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <configuration>
                <!-- 没有该配置，devtools 不生效 -->
                <fork>true</fork>
            </configuration>
        </plugin>
    </plugins>
</build>
</project>

配置application-test.properties(测试环境)

(开发环境和线上环境同下)

server.port=8089
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/school
spring.datasource.username=root
spring.datasource.password=0
spring.jpa.hibernate.ddl-auto=update
spring.jpa.show-sql=true
spring.jackson.serialization.indent_output=true

#oracle
#custom.datasource.ds1.driver-class-name=oracle.jdbc.driver.OracleDriver
#custom.datasource.ds1.url=jdbc:oracle:thin:@localhost:1521:testdb
#custom.datasource.ds1.username=user
#custom.datasource.ds1.password=pass

配置application.properties(可切换环境)

spring.profiles.active=dev
#spring.profiles.active=test
#spring.profiles.active=prod

配置事务管理(以类的形式,以配置文件形式可参考spring事务配置)

package com.fanney.springboot.framework;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.aop.Advisor;
import org.springframework.aop.aspectj.AspectJExpressionPointcut;
import org.springframework.aop.support.DefaultPointcutAdvisor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.TransactionDefinition;
import org.springframework.transaction.interceptor.NameMatchTransactionAttributeSource;
import org.springframework.transaction.interceptor.RollbackRuleAttribute;
import org.springframework.transaction.interceptor.RuleBasedTransactionAttribute;
import org.springframework.transaction.interceptor.TransactionAttribute;
import org.springframework.transaction.interceptor.TransactionInterceptor;

//spring切面编程  把xml换成注解实现
@Aspect
@Configuration
public class TxAdviceInterceptor {
	private static final int TX_METHOD_TIMEOUT = 5;
	//两个点的意思是中间夹层不管是啥名字都会匹配到
	private static final String AOP_POINTCUT_EXPRESSION = "execution (* com.fanney.springboot..service.*.*(..))";
	
	@Autowired
	private PlatformTransactionManager transactionManager;

	@Bean
	public TransactionInterceptor txAdvice() {
		NameMatchTransactionAttributeSource source = new NameMatchTransactionAttributeSource();
		
		// 只读事务，不做更新操作
		RuleBasedTransactionAttribute readOnlyTx = new RuleBasedTransactionAttribute();
		readOnlyTx.setReadOnly(true);
		readOnlyTx.setPropagationBehavior(TransactionDefinition.PROPAGATION_NOT_SUPPORTED);
		
		// 当前存在事务就使用当前事务，当前不存在事务就创建一个新的事务
		RuleBasedTransactionAttribute requiredTx = new RuleBasedTransactionAttribute();
		requiredTx.setRollbackRules(Collections.singletonList(new RollbackRuleAttribute(Exception.class)));
		requiredTx.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRED);
		requiredTx.setTimeout(TX_METHOD_TIMEOUT);
		
		Map<String, TransactionAttribute> txMap = new HashMap<String, TransactionAttribute>();
		txMap.put("add*", requiredTx);
		txMap.put("save*", requiredTx);
		txMap.put("insert*", requiredTx);
		txMap.put("update*", requiredTx);
		txMap.put("delete*", requiredTx);
		txMap.put("get*", readOnlyTx);
		txMap.put("query*", readOnlyTx);
		source.setNameMap(txMap);
		TransactionInterceptor txAdvice = new TransactionInterceptor(
				transactionManager, source);
		return txAdvice;
	}

	@Bean
	public Advisor txAdviceAdvisor() {
		AspectJExpressionPointcut pointcut = new AspectJExpressionPointcut();
		pointcut.setExpression(AOP_POINTCUT_EXPRESSION);
		return new DefaultPointcutAdvisor(pointcut, txAdvice());
	}

}

打印日志(logback-spring.xml)

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <!-- 文件输出格式 -->
    <property name="PATTERN" value="%-12(%d{yyyy-MM-dd HH:mm:ss.SSS}) |-%-5level [%thread] %c [%L] -| %msg%n" />
    <!-- test文件路径 -->
    <property name="TEST_FILE_PATH" value="d:/test.log" />
    <!-- pro文件路径 -->
    <property name="PRO_FILE_PATH" value="/opt/test/log" />
    
    <!-- 开发环境 -->
    <springProfile name="dev">
        <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
            <encoder>
                <pattern>${PATTERN}</pattern>
            </encoder>
        </appender>
        <logger name="com.fanney.springboot" level="debug" />
        <root level="info">
            <appender-ref ref="CONSOLE" />
        </root>
    </springProfile>
    
    <!-- 测试环境 -->
    <!-- springProfile 标签的 name 属性对应 application.properties 中的 spring.profiles.active 的配置。 -->
    <springProfile name="test">
        <!-- 每天产生一个文件 -->
        <appender name="TEST-FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <!-- 文件路径 -->
            <file>${TEST_FILE_PATH}</file>
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <!-- 文件名称 -->
                <fileNamePattern>${TEST_FILE_PATH}/info.%d{yyyy-MM-dd}.log</fileNamePattern>
                <!-- 文件最大保存历史数量 -->
                <MaxHistory>100</MaxHistory>
            </rollingPolicy>
            <layout class="ch.qos.logback.classic.PatternLayout">
                <pattern>${PATTERN}</pattern>
            </layout>
        </appender>
        <root level="info">
            <appender-ref ref="TEST-FILE" />
        </root>
    </springProfile>
    
    <!-- 生产环境 -->
    <springProfile name="prod">
        <appender name="PROD_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <file>${PRO_FILE_PATH}</file>
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <fileNamePattern>${PRO_FILE_PATH}/warn.%d{yyyy-MM-dd}.log</fileNamePattern>
                <MaxHistory>100</MaxHistory>
            </rollingPolicy>
            <layout class="ch.qos.logback.classic.PatternLayout">
                <pattern>${PATTERN}</pattern>
            </layout>
        </appender>
        <root level="warn">
            <appender-ref ref="PROD_FILE" />
        </root>
    </springProfile>
</configuration>

2、程序（以增删改查为例）

程序启动入口(SpringbootApplication)

package com.fanney.springboot;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class SpringbootApplication {
	public static void main(String[] args) {
        SpringApplication.run(SpringbootApplication.class, args);
    }
}

实体类

package com.fanney.springboot.entity;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

//注：jpa才需要的三个注解
@Entity
public class User {
	@Id
	@GeneratedValue
	private Long id;
	
	@Column(nullable=false)
	private String name;
 
	public Long getId() {
		return id;
	}
 
	public void setId(Long id) {
		this.id = id;
	}
 
	public String getName() {
		return name;
	}
 
	public void setName(String name) {
		this.name = name;
	}
 
	public User(String name) {
		super();
		this.name = name;
	}
 
	public User() {
		super();
	}
	@Override
	public String toString() {
		return "User [id=" + id + ", name=" + name + "]";
	}

}

service层和serviceImpl实现层

package com.fanney.springboot.service;
import java.util.List;
import com.fanney.springboot.entity.User;

public interface UserService {
	//新增
	public User saveUser(User user);
	//删除
	public void delete(Integer id);
	//修改
	public int update(Integer id,String name);
	//查询所有
	List<User> findAll();
	//根据编号查询
	User findOne(Integer id);
}	

package com.fanney.springboot.service.impl;

import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.fanney.springboot.dao.UserRespository;
import com.fanney.springboot.entity.User;
import com.fanney.springboot.service.UserService;

@Service
public class UserServiceImpl implements UserService{
	@Autowired
	private UserRespository UserRespository;
	
//	//用单独事务的方法
//	//@Transactional(rollbackFor = { IllegalArgumentException.class })
//	//@Transactional(noRollbackFor = { IllegalArgumentException.class })
	public User saveUser(User user) {
		User result = UserRespository.save(user);//jpa自带的新增方法
		if (result.getName().equals("sang")) {
			throw new IllegalArgumentException("sang已存在，数据将回滚");
		}
		return result;
	}
	
	public void delete(Integer id) {
		try {
			UserRespository.delete(id);//jpa自带的新增方法
		} catch (Exception e) {
			throw new IllegalArgumentException("执行失败，数据将回滚");
		}
	}
	
	public int update(Integer id,String name) {
		int result ;
		try {
			result = UserRespository.update(id,name);//jpa自带的新增方法
		} catch (Exception e) {
			throw new IllegalArgumentException("执行失败，数据将回滚");
		}
		return result;
	}
	//查询所有
	public List<User> findAll() {
		List<User> userList = null;
		try {
			userList =  UserRespository.findAll();
		} catch (Exception e) {
			throw new IllegalArgumentException("查询失败，数据将回滚");
		}
		return userList;
	}

	public User findOne(Integer id) {
		return UserRespository.findOne(id);
	}
}

UserRespository类

package com.fanney.springboot.dao;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Modifying;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.query.Param;
import com.fanney.springboot.entity.User;

//此处的Integer 是id的类型
public interface UserRespository extends JpaRepository<User,Integer>{
	/**
	 * 修改另外写方法
	 * @param id
	 * @param name
	 * @return 
	 */
	 @Modifying  
	 @Query(value = "update user set name = :name where id = :id",nativeQuery = true)  
     int update(@Param("id") Integer id, @Param("name") String name);
}

controller层

package com.fanney.springboot.controller;

import java.util.List;
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.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import com.fanney.springboot.entity.User;
import com.fanney.springboot.service.UserService;
/**
 * 注
 * @Controller
   @ResponseBody
   @RestController是@ResponseBody和@Controller的组合注解。
 *
 */
@RestController
public class TestController {
	
	@Autowired
	private UserService userService;
	//@GetMapping是@RequestMapping(method = RequestMethod.GET)的缩写。该注解将HTTP Get 映射到 特定的处理方法上。
	@GetMapping("/helloworld")
    public String helloworld() {
        return "helloworld";
    }
	/**
	 * 添加用户信息
	 * @return
	 */
	@RequestMapping("/save")
	public String save(User user) {
		user.setName("测试新增用户");
		User result = userService.saveUser(user);
		if(result.getName().equals(user.getName())){
			return "新增用户成功";
		}else{
			return "新增用户失败";
		}
	}
	
	/**
	 * @Description:删除用户
	 * 访问地址:http://localhost:8080/delete?id=xx
	 * @param id 传入的参数:用户ID
	 * @return
	 * @date:2018年3月12日
	 */
	@RequestMapping("/delete")
	public String delete(@RequestParam Integer id) {
		userService.delete(id);
		return "delete";
	}
	
	/**
	 * @Description:根据用户ID修改用户名
	 * 访问地址：http://localhost:8080/users/update?id=xx&name=xx
	 * @param id 传入的参数:用户ID
	 * @return
	 * @date:2018年3月12日
	 */
	@RequestMapping("/update")
	public String updateNameById(@RequestParam Integer id,@RequestParam String name) {
		System.out.println("修改用户");
		userService.update(id,name);
		return "update";
	}
	
	/**
	 * @Description:查找所有用户信息
	 * @return 返回用户列表 [{"id":1,"name":"AAAA"},{"id":2,"name":"BBBB"},{"id":3,"name":"CCCC"}]
	 * @date:2018年3月12日
	 */
	@RequestMapping("/findAll")
	public List<User> findAll(){
		System.out.println("查询所有用户");
		List<User> userList = userService.findAll();
		for(User user:userList) {
			System.out.println("用户:"+user);
		}
		return userList;
	}
	
	/**
	 * @Description:根据用户ID查询用户信息
	 * 访问地址：http://localhost:8080/users/findById/xx
	 * @param id
	 * @return json数据 {"id":1,"name":"AAAA"}
	 * @date:2018年3月12日
	 */
	@RequestMapping("/findById/{id}")
	public User findUserById(@PathVariable Integer id){
		System.out.println("查询用户");
		User user = userService.findOne(id);
		System.out.println("用户:"+user);
		return user;
	}

}