SpringCould client 集成 JPA

拼搏现实的明天。 2021-09-19 03:46 292阅读 0赞

# 配置POM文件 #

<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>bsea</groupId>
      <artifactId>UserSevice</artifactId>
      <version>0.0.1-SNAPSHOT</version>
       <packaging>jar</packaging>
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>1.5.13.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>
    
        <dependencyManagement>
            <dependencies>
                <dependency>
                    <groupId>org.springframework.cloud</groupId>
                    <artifactId>spring-cloud-dependencies</artifactId>
                    <version>Edgware.SR3</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
            </dependencies>
        </dependencyManagement>
        <dependencies>
    
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-eureka</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter</artifactId>
            </dependency>
            
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>5.1.46</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-data-jpa</artifactId>
            </dependency>
            
            
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-devtools</artifactId>
                <scope>runtime</scope>
            </dependency>
            
        </dependencies>
     	<repositories>
            <repository>
                <id>alimaven</id>
                <name>aliyun maven</name>
                <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
            </repository>
        </repositories>
        <build>
        	<finalName>userservice</finalName>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    </project>

# 启动类 #

package com.zz;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
    
    @EnableDiscoveryClient
    @SpringBootApplication
    public class App {
    
    	public static void main(String[] args) {
    		// TODO Auto-generated method stub
    		  SpringApplication.run(App.class);
    	}
    
    }

# 配置文件 #

server.port=9981
    # Spring Could 的配置
    spring.application.name=userservice
    eureka.client.register-with-eureka=true
    eureka.client.fetch-registry=true
    eureka.client.service-url.defaultZone=http://localhost:9888/eureka/
    
    # JPA 的配置
    spring.datasource.url = jdbc:mysql://localhost:3306/jeeplus_ani_big?useUnicode=true&characterEncoding=utf8
    spring.datasource.username = root
    spring.datasource.password = root
    spring.datasource.driverClassName = com.mysql.jdbc.Driver
    spring.jpa.database = MYSQL
    spring.jpa.show-sql = true
    spring.jpa.hibernate.ddl-auto = update

# Controller #

package com.zz.controller;
    
    import java.util.List;
    
    import javax.annotation.Resource;
    
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    import com.zz.entity.SysUser;
    import com.zz.service.UserService;
    @RestController
    public class UserController {
    	@Resource
    	UserService userService;
    	
    	@RequestMapping("showAll")
    	public List<SysUser> getAll(){
    		return userService.getAll();
    	}
    	
    }

# 代码结构 #

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2gzNTYzNjM_size_16_color_FFFFFF_t_70]

# JPA 查询 #

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2gzNTYzNjM_size_16_color_FFFFFF_t_70 1]

# 测试 #

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2gzNTYzNjM_size_16_color_FFFFFF_t_70 2]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2gzNTYzNjM_size_16_color_FFFFFF_t_70]: /images/20210726/073b8c416c8344e8aeeb0d2c7674a599.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2gzNTYzNjM_size_16_color_FFFFFF_t_70 1]: /images/20210726/e41321b923c546cfa6798359f5aae28e.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2gzNTYzNjM_size_16_color_FFFFFF_t_70 2]: /images/20210726/8757db58dada4c2e872b2ea03d474fc3.png