redis实现简单的条件查询-木庄网络博客

本文摘自PHP中文网，作者尚，侵删。

一、导入jar包

二、实现简单的条件查询

创建一个User实体类

public class User {
    private String id;
    private String name;
    private String sex;
    private int age;
    public String getId() {
        return id;
    }
    public User() {
    super();
    }
    public void setId(String id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getSex() {
        return sex;
    }
    public void setSex(String sex) {
        this.sex = sex;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public User(String id, String name, String sex, int age) {
    super();
    this.id = id;
    this.name = name;
    this.sex = sex;
    this.age = age;
    }
    @Override
    public String toString() {
    return "User [id=" + id + ", name=" + name + ", sex=" + sex + ", age="
        + age + "]";
    }
}

创建5个对象并将其存入缓存中,以便我们进行测试

//连接redis
Jedis jedis = new Jedis("127.0.0.1",6379);
 
Map<String, String> map = new HashMap<String,String>();
final String USER_TABLE = "USER_TABLE";
 
//向缓存中存入5条数据组成的map
String uuid1 = UUID.randomUUID().toString();
User user1 = new User(uuid1, "y1", "m", 15);
//将对象转为json
map.put(uuid1, JSONObject.fromObject(user1).toString());
 
String uuid2 = UUID.randomUUID().toString();
User user2 = new User(uuid2, "y2", "m", 18);
map.put(uuid2, JSONObject.fromObject(user2).toString());
 
String uuid3 = UUID.randomUUID().toString();
User user3 = new User(uuid3, "y3", "n", 25);
map.put(uuid3, JSONObject.fromObject(user3).toString());
 
String uuid4 = UUID.randomUUID().toString();
User user4 = new User(uuid4, "y4", "n", 15);
map.put(uuid4, JSONObject.fromObject(user4).toString());
 
String uuid5 = UUID.randomUUID().toString();
User user5 = new User(uuid5, "y5", "m", 25);
map.put(uuid5, JSONObject.fromObject(user5).toString());
 
//把map存到缓存中
jedis.hmset("USER_TABLE", map);