Springboot/Springcloud项目集成redis进行存取的过程解析

<dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

@RestController
public class RedisController {
    @Autowired
    private StringRedisTemplate stringRedisTemplate;//只支持redis五大类型中的字符串类型
    @Autowired
    private RedisTemplate redisTemplate;//支持redis五大类型中的所有类型


}

@RequestMapping("/setString")
    public Object  setString(){
        stringRedisTemplate.boundValueOps("s").set("辣椒");//存入

        return stringRedisTemplate.boundValueOps("s").get();//读取
    }

package com.star.pojo;

import java.io.Serializable;

public class Person implements Serializable {
    private String name;
    private int age;
    private String Add;

    public Person() {
    }

    public Person(String name, int age, String add) {
        this.name = name;
        this.age = age;
        Add = add;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getAdd() {
        return Add;
    }

    public void setAdd(String add) {
        Add = add;
    }

    @Override
    public String toString() {
        return "Person{" +
                "name='" + name + '\'' +
                ", age=" + age +
                ", Add='" + Add + '\'' +
                '}';
    }
}

Person.java

@RequestMapping("/setPerson")
    public Object  setPerson(){
        Person person = new Person("鱼er", 151, "北京");
        redisTemplate.boundValueOps("p").set(person);//存入

        return redisTemplate.boundValueOps("p").get();//读取
    }

@RequestMapping("/setList")
    public List<String> setListRedis(){
        List<String> list=new ArrayList<>();
        list.add("手头");
        list.add("苹果");
        list.add("辣椒");

        this.redisTemplate.boundValueOps("listk").set(list);//存入

        return (List<String>) this.redisTemplate.boundValueOps("listk").get();//读取
    }

@RequestMapping("/setHash")
    public List<String> setHash(){
        List<String> list=new ArrayList<>();
        list.add("大书");
        list.add("酸菜");
        list.add("鸡蛋");

        this.redisTemplate.boundHashOps("thing").put("h",list);//存入
        return (List<String>) this.redisTemplate.boundHashOps("thing").get("h");//读取

    }

<dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-test</artifactId>
</dependency>

<dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
       <version>4.12</version>
       <scope>test</scope>
</dependency>

@RunWith(value = SpringJUnit4ClassRunner.class)
//RedisApp为启动类名字
@SpringBootTest(classes = {RedisApp.class})
public class RedisAppTest {
    @Autowired
    private StringRedisTemplate stringRedisTemplate;
    @Autowired
    private RedisTemplate redisTemplate;

    @Test
    public void setStringRedis(){
        this.stringRedisTemplate.boundValueOps("name2").set("熊大");
        System.out.println("ok");
    }
    @Test
    public void getStringRedis(){
        String name = this.stringRedisTemplate.boundValueOps("name2").get();
        System.out.println("ok:"+name);
    }
}

@Autowired
    private RedisTemplate redisTemplate;
　　　　/**
        * 首次访问时，如果redis没有数据，就访问数据库，然后把访问到的数据存到redis
        * 后续访问时，直接查询redis
        */
        @Override
        public List<Person> findByPersonId(Long id) {// 先查看缓存中有没有
            List<Person> list = (List<Person>) redisTemplate.boundValueOps(id).get(); 　　　　　　　if(list==null){
　　　　　　　　　　System.out.println("redis中没有，开始从数据库中获取");
　　　　　　　　　　.........　　　　　　　　　　//查询数据库得到List<Person> list =xxxxxx;
                redisTemplate.boundValueOps(id).set(list);//将从数据库查到的数据添加到redis中以备下次查找
            }else{
                System.out.println("redis中存在，list是直接从缓存中获取的，没查数据库");
            }
            return list;
        }