springboot2

springboot集成redis

下载redis的windows安装包并安装

• 下载地址：https://github.com/MicrosoftArchive/redis/releases
• 安装就一路next，然后找到安装redis的目录，新建start.bat，并写入：

  redis-server.exe redis.windows.conf

• 点击start.bat启动(退出redis命令：Ctrl+c)

安装redis客户端Redis Desktop Manager

• 下载地址: https://pan.baidu.com/s/1Jvr9MbgFn4UJh4M1AMo3gA 提取码：3i9b
• 安装就一路next，然后先启动redis,然后，打开客户端
• 

代码编写

1. 新建StudentController类，并写入：

   package com.dj.app.springboot.web;
   
   import com.dj.app.springboot.service.StudentService;
   import org.springframework.beans.factory.annotation.Autowired;
   import org.springframework.stereotype.Controller;
   import org.springframework.web.bind.annotation.RequestMapping;
   import org.springframework.web.bind.annotation.ResponseBody;
   
   @Controller
   public class StudentController {
       @Autowired
       private StudentService studentService;
       // 存
       @RequestMapping(value = "/put")
       public @ResponseBody Object put(String key, String value) {
           studentService.put(key, value);
           return "值已存进redis";
       }
   
       // 取
       @RequestMapping(value = "/get")
       public @ResponseBody String get() {
           String name = studentService.get("name");
           return "数据为：" + name;
       }
   }

2. 新建StudentService接口类，并写入:

   package com.dj.app.springboot.service;
   
   public interface StudentService {
       /**
       * 将值存进redis
       * @param key
       * @param value
       */
       void put(String key, String value);
       String get(String name);
   }

3. 新建StuentServiceImpl实现类，并写入:

   package com.dj.app.springboot.service.impl;
   
   import com.dj.app.springboot.service.StudentService;
   import org.springframework.beans.factory.annotation.Autowired;
   import org.springframework.data.redis.core.RedisTemplate;
   import org.springframework.stereotype.Service;
   
   @Service
   public class StudentServiceImpl implements StudentService {
       @Autowired
       private RedisTemplate<Object, Object> redisTemplate;
   
       @Override
       public void put(String key, String value) {
           redisTemplate.opsForValue().set(key, value);
       }
   
       @Override
       public String get(String name) {
           String res = (String) redisTemplate.opsForValue().get(name);
           return res;
       }
   }

4. 在application.yml中，配置redis:

   spring:
   # 设置redis
   redis:
     port: 6379
     host: localhost

5. 启动，并输入：localhost:8080/put?key=name&value=zhangsan，localhost:8080/get能看到结果

springboot集成lombok

安装lombok

1. 引入jar包

   <dependency>
     <groupId>org.projectlombok</groupId>
     <artifactId>lombok</artifactId>
     <optional>true</optional>
   </dependency>

2. 启用lombok

   File => Settings => Build, Execution, Deployment => Compiler => Annotation Processors
   
   勾选 Enable annotation processing

3. 安装lombok插件

   File => Settings => Plugins, 搜索lombok下载

   代码编写

   # 新建UserInfo2.class类
   
     @Setter @Getter // 自动生成成员变量的get和set方法
     public class UserInfo2 {
         private Long id;
         private String name;
         private String phone;
         private String address;
     }
   
   # 新建使用方法App.class
     public class App {
       public static void main(String[] args) {
         UserInfo2 userInfo2 = new UserInfo2();
       }
     }

   详细教程点击这里：lombok教程