Fastjson 使用，转换；做个记录

Fastjson，是阿里巴巴提供的一个Java语言编写的高性能功能完善的JSON库。
其开源的下载网址为：https://github.com/AlibabaTech/fastjson。

示例代码如下：

[java] view plain copy

@H_301_25@packagetest;
@H_301_25@importjava.util.ArrayList;
@H_301_25@importjava.util.List;
@H_301_25@importcom.alibaba.fastjson.JSON;
@H_301_25@classUser{
@H_301_25@privateStringname;
@H_301_25@private@H_301_25@intage;
@H_301_25@publicStringgetName(){
@H_301_25@returnname;
}
@H_301_25@public@H_301_25@voidsetName(Stringname){
@H_301_25@this.name=name;
@H_301_25@public@H_301_25@intgetAge(){
@H_301_25@returnage;
@H_301_25@public@H_301_25@voidsetAge(@H_301_25@intage){
@H_301_25@this.age=age;
@Override
@H_301_25@publicStringtoString(){
@H_301_25@return"User[name="+name+",age="+age+"]";
}
};
@H_301_25@classUserGroup{
@H_301_25@privateList<User>users=@H_301_25@newArrayList<User>();
@H_301_25@publicList<User>getUsers(){
@H_301_25@returnusers;
@H_301_25@public@H_301_25@voidsetUsers(List<User>users){
@H_301_25@this.users=users;
@H_301_25@return"UserGroup[name="+name+",users="+users+"]";
@H_301_25@classFastJsonTest{
@H_301_25@public@H_301_25@static@H_301_25@voidmain(String[]args){
//构建用户geust
UserguestUser=@H_301_25@newUser();
guestUser.setName("guest");
guestUser.setAge(28);
//构建用户root
UserrootUser=@H_301_25@newUser();
rootUser.setName("root");
guestUser.setAge(35);
//构建用户组对象
UserGroupgroup=@H_301_25@newUserGroup();
group.setName("admin");
group.getUsers().add(guestUser);
group.getUsers().add(rootUser);
//用户组对象转JSON串
StringjsonString=JSON.toJSONString(group);
System.out.println("jsonString:"+jsonString);
//JSON串转用户组对象
UserGroupgroup2=JSON.parSEObject(jsonString,UserGroup.@H_301_25@class);
System.out.println("group2:"+group2);
//构建用户对象数组
User[]users=@H_301_25@newUser[2];
users[0]=guestUser;
users[1]=rootUser;
//用户对象数组转JSON串
StringjsonString2=JSON.toJSONString(users);
System.out.println("jsonString2:"+jsonString2);
//JSON串转用户对象列表
List<User>users2=JSON.parseArray(jsonString2,User.@H_301_25@class);
System.out.println("users2:"+users2);
}

输出如下：

[html]

jsonString:{"name":"admin","users":[{"age":35,"name":"guest"},{"age":0,"name":"root"}]}

group2:UserGroup[name=admin,users=[User[name=guest,age=35],User[name=root,age=0]]]
jsonString2:[{"age":35,"name":"root"}]
users2:[User[name=guest,age=0]]

Fastjson 使用，转换；做个记录

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