fast-json的转换

需要的fast-json jar包，下载地址：fast-json jar包地址

package heheda;import java.util.ArrayList;import java.util.List;import com.alibaba.fastjson.JSON;import net.sf.json.JSONArray;import net.sf.json.JSONObject;public class JsonUse {    private String name;    private String address;    private Integer age;    public JsonUse() {        super();    }    public JsonUse(String name, String address, Integer age) {        super();        this.name = name;        this.address = address;        this.age = age;    }    @Override    public String toString() {        return "[name=" + name + ", address=" + address + ", age=" + age + "]";    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getAddress() {        return address;    }    public void setAddress(String address) {        this.address = address;    }    public Integer getAge() {        return age;    }    public void setAge(Integer age) {        this.age = age;    }    public static void main(String[] args) {        JsonUse jsonUse = new JsonUse();        jsonUse.setAddress("上海");        jsonUse.setAge(18);        jsonUse.setName("李雷");        JsonUse jsonUse2 = new JsonUse();        jsonUse2.setAddress("北京");        jsonUse2.setAge(20);        jsonUse2.setName("韩梅梅");        List<JsonUse> list = new ArrayList<JsonUse>();        // JsonUse对象转JSON串        String jsonString = JSON.toJSONString(jsonUse);        System.out.println("jsonString:" + jsonString);        // JSON串转用jsonUse对象        JsonUse jsonUse3 = JSON.parseObject(jsonString, JsonUse.class);        String nameString = jsonUse3.name;        System.out.println("nameString:" + nameString);        System.out.println("jsonUse3:" + jsonUse3);        // 构建JsonUse对象数组        JsonUse[] users = new JsonUse[2];        users[0] = jsonUse;        users[1] = jsonUse2;        // 用户对象数组转JSON串        String jsonString2 = JSON.toJSONString(users);        System.out.println("jsonString2:" + jsonString2);        // JSON串转用户对象列表        List<JsonUse> users2 = JSON.parseArray(jsonString2, JsonUse.class);        System.out.println("users2:" + users2);    }}

结果：