92.【SpringCloud NetFilx】（三）

package com.jsxs.service;
import com.jsxs.pojo.Dept;
import java.util.List;
public interface DeptService {
    public boolean addDept(Dept dept);
    public Dept queryById(Long id);
    public List<Dept> all();
}

package com.jsxs.service;
import com.jsxs.dao.DeptDao;
import com.jsxs.pojo.Dept;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
import java.util.List;
@Service
public class DeptServiceImpl implements DeptService{
    @Resource
    private DeptDao deptDao;
    @Override
    public boolean addDept(Dept dept) {
        return deptDao.addDept(dept);
    }
    @Override
    public Dept queryById(Long id) {
        return deptDao.queryById(id);
    }
    @Override
    public List<Dept> all() {
        return deptDao.all();
    }
}

package com.jsxs.controller;
import com.jsxs.pojo.Dept;
import com.jsxs.service.DeptService;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.annotation.Resource;
import java.util.List;
//  提供Restful服务
@RestController
public class DeptController {
    @Resource
    private DeptService deptService;
    @PostMapping("/dept/add")
    public Boolean addDept(Dept dept){
        boolean flag = deptService.addDept(dept);
        return flag;
    }
    @GetMapping("/dept/queryById/{id}")
    public Dept queryById(@PathVariable("id") Long id){
        Dept dept = deptService.queryById(id);
        return dept;
    }
    @GetMapping("/dept/all")
    public List<Dept> all(){
        List<Dept> all = deptService.all();
        return all;
    }
}

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>SpringCloud</artifactId>
        <groupId>org.jsxs</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>SpringCloud-consumer-dept-80</artifactId>
    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>
    <dependencies>
        <dependency>
            <groupId>com.jsxs</groupId>
            <artifactId>SpringCloud-api</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <!--        热部署工具-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>
</project>

server:
  port: 80

package com.jsxs.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;
@Configuration  //  相当于application.xml文件
public class ConfigBean {
    //  把RestTemplate注入到Spring中去
    @Bean
    public RestTemplate getRestTemplate(){
        return new RestTemplate();
    }
}

package com.jsxs.controller;
import com.jsxs.pojo.Dept;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
import javax.annotation.Resource;
import java.util.List;
@RestController
public class DeptConsumerController {
    //注意: 这里我们只是引入了实体类的数据，并没有引入service接口
    //思考: 消费者界面不应该存在Dao层也不应该存在Service层,该如何使用服务呢
    //RestTemplate  ... 我们直接调用就行，但需要注入到Spring中
    @Resource
    // (URI url, 实体 map,Class<T> responseType) 地址---- 实体 ----返回类型.class
    private RestTemplate restTemplate;   // 提供多种便捷访问远程   访问http服务的方法，简单的Rest
    //  设置服务层的前缀为常量
    private static final String REST_URL_PREFIX="http://localhost:8081";
    //  根据id进行数据的查找
  // 用户层的这个访问路径可以随意写，没有必要和服务层的路径完全一致
    @RequestMapping("/consumer/dept/get/{id}")
    public Dept get(@PathVariable("id") Long deptno){
    // 这里返回的是: 服务层的路径
        return restTemplate.getForObject(REST_URL_PREFIX+"/dept/queryById/"+deptno,Dept.class);
    }
    //  添加数据
    @RequestMapping("/consumer/dept/add")
    public boolean add(Dept dept){
        return restTemplate.postForObject(REST_URL_PREFIX+"/dept/add",dept,Boolean.class);
    }
    //  查找全部数据
    @RequestMapping("/consumer/dept/all")
    public List<Dept> all(){
        return restTemplate.getForObject(REST_URL_PREFIX+"/dept/all",List.class);
    }
}

package com.jsxs;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class DeptConsumer_80 {
    public static void main(String[] args) {
        SpringApplication.run(DeptConsumer_80.class,args);
    }
}