试用fastJSON

实体类

User.java

package com.test.fastjson.entity;

import java.util.Date;

public class User {
    private Long id;
    /**
     * 登录名
     */
    private String loginName;
    /**
     * 用户名
     */
    private String userName;
    /**
     * 手机号码
     */
    private String cellNO;
    
    /**
     * password
     */
    private String password;
    /**
     * update时间
     */
    private Date updateDate;
    
    private String sex;
    
    private Classes classes;
    
    /**
     * 是否可用
     * [JPA没有boolean类型,在get/set方法中修改. 持久导的实体属性使用Character类型，则领域层可直接使用boolean类型。]
     */
    private Character enabled;
    
    // setter/getter
    
    public Boolean getEnabled() {
        if (enabled == null)
            return null;
        return enabled == 'Y' ? Boolean.TRUE : Boolean.FALSE;
    }

    public void setEnabled(Boolean enabled) {
        if (enabled == null) {
            this.enabled = null;
        } else {
            this.enabled = enabled == true ? 'Y' : 'N';
        }
    }
    
    public String getLoginName() {
        return loginName;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }

    public void setLoginName(String loginName) {
        this.loginName = loginName;
    }

    public String getUserName() {
        return userName;
    }

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

    public String getCellNO() {
        return cellNO;
    }

    public void setCellNO(String cellNO) {
        this.cellNO = cellNO;
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public Date getUpdateDate() {
        return updateDate;
    }

    public void setUpdateDate(Date updateDate) {
        this.updateDate = updateDate;
    }

    public Classes getClasses() {
        return classes;
    }

    public void setClasses(Classes classes) {
        this.classes = classes;
    }
}

classes.java

package com.test.fastjson.entity;

import java.util.List;

public class Classes {
    
    private String name;
    private List<User> u;
    
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public List<User> getU() {
        return u;
    }
    public void setU(List<User> u) {
        this.u = u;
    }

    
}

testClient

package com.test.fastjson;

import java.util.Date;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.test.fastjson.entity.Classes;
import com.test.fastjson.entity.User;

public class testFastjson {

    public static void main(String[] args) {
        Classes c=new Classes();
        c.setName("class one");
        
        User u=new User();
        u.setCellNO("1555555555");
        u.setId(232323L);
        u.setUpdateDate(new Date());
        u.setClasses(c);
        
        //obj2str 序列化
        String str=JSON.toJSONString(u);
        System.out.println(str);
        //str2obj 反序列化：
        User u2=JSON.parseObject(str, User.class);
//        Object o=JSON.parse(str);
        System.out.println("cellNO= "+u2.getCellNO()+" UpdateDate= "+u2.getUpdateDate()+" class= "+u2.getClass().getName());
        
    }
    

}

执行效果

{"cellNO":"1555555555","classes":{"name":"class one"},"id":232323,"updateDate":1421047634650}
cellNO= 1555555555 UpdateDate= Mon Jan 12 15:27:14 CST 2015 class= com.test.fastjson.entity.User