JSON类库 Flexjson学习

官方地址（需FQ）：http://flexjson.sourceforge.net/

Flexjson 是一个将 Java 对象转成 JSON 的 类库，是一个深度转换的过程。

下面是我写的一个例子：http://download.csdn.net/detail/zzhd_xingfu/5885183

Main.java

package com.flexjson.main;

import java.util.ArrayList;
import java.util.List;

import com.flexjson.model.InterestModel;
import com.flexjson.model.TelModel;
import com.flexjson.model.UserModel;

public class Main {

    /**
     * @param args
     */
    public static void main(String[] args) {
        testJsonUtil();
    }

    public static void testJsonUtil() {
        // Json String to Java object
        String json1 = "{\"ims\":[{\"name\":\"篮球\"},{\"name\":\"足球\"}],\"tm\":{\"number\":\"15896352635\",\"type\":\"手机号\"},\"passWord\":\"123\",\"userName\":\"admin\"}";
        UserModel um1 = JsonUtil.getObjFromJsonStr(json1, UserModel.class);
        System.out.println(um1.toString());
        // ///////////////////////////////////////////////

        // Java object to JSON String 简单的Object
        UserModel um2 = new UserModel();
        um2.setUserName("admin");
        um2.setPassWord("123");
        System.out.println(JsonUtil.getJsonStrFromObj(um2));
        // ///////////////////////////////////////////////

        // Java object to JSON String 复杂的Object
        UserModel um3 = new UserModel();
        um3.setUserName("admin");
        um3.setPassWord("123");
        List<InterestModel> ims = new ArrayList<InterestModel>();
        InterestModel im1 = new InterestModel();
        im1.setName("篮球");
        InterestModel im2 = new InterestModel();
        im2.setName("足球");
        ims.add(im1);
        ims.add(im2);
        um3.setIms(ims);
        TelModel tm = new TelModel();
        tm.setNumber("15896352635");
        tm.setType("手机号");
        um3.setTm(tm);
        String json3 = JsonUtil.getJsonStrFromObj(um3, "ims", "tm");
        System.out.println(json3);
        // ///////////////////////////////////////////////

        // List to JSON String
        UserModel um4_1 = new UserModel();
        um4_1.setUserName("admin_1");
        um4_1.setPassWord("123_1");
        List<InterestModel> ims4_1 = new ArrayList<InterestModel>();
        InterestModel im4_1_1 = new InterestModel();
        im4_1_1.setName("篮球_1");
        InterestModel im4_1_2 = new InterestModel();
        im4_1_2.setName("足球_1");
        ims4_1.add(im4_1_1);
        ims4_1.add(im4_1_2);
        um4_1.setIms(ims4_1);
        TelModel tm4_1 = new TelModel();
        tm4_1.setNumber("15896352635_1");
        tm4_1.setType("手机号_1");
        um4_1.setTm(tm4_1);

        UserModel um4_2 = new UserModel();
        um4_2.setUserName("admin_2");
        um4_2.setPassWord("123_2");
        List<InterestModel> ims4_2 = new ArrayList<InterestModel>();
        InterestModel im4_2_1 = new InterestModel();
        im4_2_1.setName("篮球_2");
        InterestModel im4_2_2 = new InterestModel();
        im4_2_2.setName("足球_2");
        ims4_2.add(im4_2_1);
        ims4_2.add(im4_2_2);
        um4_2.setIms(ims4_2);
        TelModel tm4_2 = new TelModel();
        tm4_2.setNumber("15896352635_2");
        tm4_2.setType("手机号_2");
        um4_2.setTm(tm4_2);

        List<Object> list = new ArrayList<Object>();
        list.add(um4_1);
        list.add(um4_2);
        System.out.println(JsonUtil.getJsonStrFromList(list, "User", "ims", "tm"));
        // ///////////////////////////////////////////////

    }
}

JsonUtil.java

package com.flexjson.main;

import java.util.List;

import flexjson.JSONDeserializer;
import flexjson.JSONSerializer;

public class JsonUtil {

    // Java object to JSON String
    public static String getJsonStrFromObj(Object obj) {
        JSONSerializer serializer = new JSONSerializer();
        return serializer.serialize(obj);
    }

    // Java object to JSON String
    public static String getJsonStrFromObj(Object obj, String... params) {
        JSONSerializer serializer = new JSONSerializer();
        serializer = serializer.include(params);
        return serializer.serialize(obj);
    }

    // List to JSON String
    public static String getJsonStrFromList(List<Object> objs, String rootName,
            String... params) {
        JSONSerializer serializer = new JSONSerializer();
        serializer = serializer.include(params);
        serializer.rootName(rootName);
        return serializer.serialize(objs);
    }

    // Json String to Java object
    public static <T> T getObjFromJsonStr(String source, Class<T> bean) {
        return new JSONDeserializer<T>().deserialize(source, bean);
    }
    
    
}

UserModel.java

/**
 * 
 */
package com.flexjson.model;

import java.util.List;

/**
 * @author Administrator
 * 
 */
public class UserModel {
    private String userName;// 用户名
    private String passWord;// 密码
    private List<InterestModel> ims;
    private TelModel tm;
    
    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public String getPassWord() {
        return passWord;
    }

    public void setPassWord(String passWord) {
        this.passWord = passWord;
    }
    
    public List<InterestModel> getIms() {
        return ims;
    }

    public void setIms(List<InterestModel> ims) {
        this.ims = ims;
    }

    public TelModel getTm() {
        return tm;
    }

    public void setTm(TelModel tm) {
        this.tm = tm;
    }

    @Override
    public String toString() {
        return "userName=" + userName + "; passWord=" + passWord + ";";
    }

}

TelModel.java

package com.flexjson.model;

public class TelModel {
    private String number;
    private String type;

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public String getNumber() {
        return number;
    }

    public void setNumber(String number) {
        this.number = number;
    }

}

InterestModel.java

package com.flexjson.model;

public class InterestModel {
    private String name;

    public String getName() {
        return name;
    }

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