一、通过jedis连接数据库
1.首先导入依赖
<!-- https://mvnrepository.com/artifact/redis.clients/jedis -->
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>5.1.0</version>
</dependency>2。写出主机号和端口
package com.easy;
import redis.clients.jedis.Jedis;
import java.util.Set;
public class EasyRedisA {
public static void main(String[] args) {
//通过jedis连接数据库
Jedis jedis=new Jedis("127.0.0.1",6379);
System.out.println("连接成功");
String result=jedis.ping();
System.out.println("ping的结果是"+result);
result=jedis.set("easyname","何容与");
System.out.println("set结果是 "+result);
//获取所有的key
Set<String> keys=jedis.keys("*");
//打印每一个key
for(String key:keys){
System.out.println(key);
}
jedis.close();
}
}
二、SpringBoot整合
1.导入依赖
2.yml配置
3.定义实体类
package org.example.bean;
import java.io.Serializable;
public class Student implements Serializable {
private static final long serialVersionUID=1;
private int id;
private String name;
private int score;
private String sex;
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getScore() {
return score;
}
public void setScore(int score) {
this.score = score;
}
@Override
public String toString() {
return "Student{" +
"id=" + id +
", name='" + name + '\'' +
", score=" + score +
'}';
}
}
4.控制类
package org.example.Controller;
import org.example.bean.Student;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.annotation.Resource;
@RestController
public class EasyRedisController {
// @Autowired
// //byType
// @Resource
// //byName
@Autowired
RedisTemplate redisTemplate;
@RequestMapping("addname")
public String addString(){
redisTemplate.opsForValue().set("name","xxc");
return "ok";
}
@RequestMapping("getname")
public String getStr(){
Object obj= redisTemplate.opsForValue().get("name");
return obj.toString();
}
@RequestMapping("addobj")
public String addObj(){
Student student=new Student();
student.setId(1);
student.setName("何容与");
student.setScore(99);
redisTemplate.opsForValue().set("student",student);
return "ok";
}
@RequestMapping("getobj")
public Student getObj(){
Object obj=redisTemplate.opsForValue().get("student");
return (Student)obj;
}
}
通过反序列化获得Student对象，要确保Student类能被反序列化。
