首先给出pom.xml 其中包括了必须的jpa依赖 log4j2依赖 mysql 和 jdbc 等等

    
        
     
      4.0.0
         
     
      com.avicsafety
         
     
      webapp
         
     
      0.0.1-SNAPSHOT
         
         
             
      
       org.springframework.boot
              
      
       spring-boot-starter-parent
              
      
       1.4.0.RELEASE
          
         
         
         	
              
                  
       
        org.springframework.boot
                   
       
        spring-boot-starter-web
                    
         	            
          	                
         
          org.springframework.boot
           	                
         
          spring-boot-starter-logging
           	            
             		
                
                      
      		
        		    
       
        org.springframework.boot
         		    
       
        spring-boot-devtools
         		    
       
        true
       		
                       
              
                  
       
        org.springframework.boot
                   
       
        spring-boot-starter-log4j2
               
                      
      		
      			
       
        org.springframework.boot
       			
       
        spring-boot-starter-data-jpa
       		
      				
      		
      			
       
        mysql
       			
       
        mysql-connector-java
       		
      				
      		
      			
       
        org.springframework.boot
       			
       
        spring-boot-starter-jdbc
       		
      				
      		
      			
       
        org.springframework.boot
       			
       
        spring-boot-starter-tomcat
       			
       	            
        	                
         
          org.slf4j
         	                
         
          slf4j-log4j2
         	            
        	        
       		
      				
      	    
      	        
       
        com.alibaba
       	        
       
        druid
       	        
       
        1.0.18
       		
      		    
             
     		
      			
       				
        
         org.springframework.boot
        				
        
         spring-boot-maven-plugin
        				
                                
          
           
           
            repackage
            
           
           
           
            exec
            
           
                              
        			
       			
       			   
        
         maven-compiler-plugin
        			   
        			      
         1.8			      
         
          1.8
         			   
        			
       		
      	
     
    

创建实体类

package com.avicsafety.webapp.model;import javax.persistence.Column;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.Id;@Entitypublic class User {    @Id    @GeneratedValue    private Long id;    @Column(nullable = false)    private String name;    @Column(nullable = false)    private Integer age;}

数据访问层

package com.avicsafety.webapp.dao;import org.springframework.data.jpa.repository.JpaRepository;import org.springframework.data.jpa.repository.Query;import org.springframework.data.repository.query.Param;import com.avicsafety.webapp.model.User;public interface UserRepository extends JpaRepository
    
      {    User findByName(String name);    User findByNameAndAge(String name, Integer age);    @Query("from User u where u.name=:name")    User findUser(@Param("name") String name);}
    

逻辑层的接口和实现

package com.avicsafety.webapp.service;import com.avicsafety.webapp.model.User;public interface IUserService {	public void AddUser(User user);}

package com.avicsafety.webapp.service.impl;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import com.avicsafety.webapp.dao.UserRepository;import com.avicsafety.webapp.model.User;import com.avicsafety.webapp.service.IUserService;@Servicepublic class UserServiceImpl implements IUserService {		private static final Log logger = LogFactory.getLog(UserServiceImpl.class);		@Autowired	UserRepository dao;	@Override	public void AddUser(User user) {		// TODO Auto-generated method stub		dao.save(user);		logger.info("add user");	}}

控制层 

package com.avicsafety.webapp;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.EnableAutoConfiguration;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;import com.avicsafety.webapp.model.User;import com.avicsafety.webapp.service.IUserService;@RestController@EnableAutoConfiguration@SpringBootApplication  public class MyApplication {		@Autowired   	private IUserService userService;	 	@RequestMapping("/")    String home() { 		User user = new User(); 		user.setName("shili"); 		user.setAge(11); 		userService.AddUser(user);        return "ok";    } 	    public static void main(String[] args) throws Exception {        SpringApplication.run(MyApplication.class, args);    }}

application.properties 配置

spring.datasource.driverClassName = com.mysql.jdbc.Driverspring.datasource.url = jdbc:mysql://127.0.0.1/mydb?characterEncoding=utf8&zeroDateTimeBehavior=convertToNullspring.datasource.username = rootspring.datasource.password = #####spring.jpa.database = MYSQLspring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialectspring.jpa.show-sql = truespring.jpa.hibernate.ddl-auto = updatespring.jpa.hibernate.naming-strategy = org.hibernate.cfg.ImprovedNamingStrategystrategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpllogging.config=classpath:log4j2.xmlspring.devtools.restart.enabled = true

log4j2.xml 配置