if(country.equals(theKey))

{

System.out.println(reader.nextString());

}

if(province.equals(theKey))

{

System.out.println(reader.nextString());

}

if(city.equals(theKey))

{

System.out.println(reader.nextString());

}

}

reader.endObject();

}

}

reader.endObject();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

都給解析出來了。

1.解析一個(gè)對象

可以直接從Json中將隊(duì)形解析出來，這個(gè)Json必須是一個(gè)Json對象，如下：

{name:zhangsan,age:22,address:太原}

它只是一個(gè)對象。

我新建一個(gè)類，生成get和set方法，如下：

package com.zhycheng;

publicclass Human {

String name,address;

int age;

public String getName() {

return name;

}

publicvoid setName(String name) {

this.name = name;

}

publicint getAge() {

return age;

}

publicvoid setAge(int age) {

this.age = age;

}

public String getAddress() {

return address;

}

publicvoid setAddress(String address) {

this.address = address;

}

}

然后使用如下代碼直接解析

String s={name:zhangsan,age:22,address:太原};

Gson g=new Gson();

Human h=g.fromJson(s, Human.class);

System.out.println(h.getName()+;+h.getAge()+;+h.getAddress());

2.解析數(shù)組

下面解析如下的Json數(shù)據(jù)：

[{name:zhangsan,age:22,address:太原},

{name:lisi,age:20,address:黃岡},

{name:wangwu,age:21,address:武漢}]

代碼如下：

String s=[{name:zhangsan,age:22,address:太原},{name:lisi,age:20,address:黃岡},{name:wangwu,age:21,address:武漢}];

Type type=new TypeToken>(){}.getType();

Gson g=new Gson();

LinkedList ll=g.fromJson(s, type);

for(int i=0;i

{

Human h=(Human)ll.get(i);

System.out.println(h.getName()+,+h.getAge()+,+h.getAddress());

}

在這里要注意：

1.Json里的數(shù)據(jù)時(shí)數(shù)組，數(shù)組里是對象

2.泛形一定要用，否則出錯(cuò)

項(xiàng)目工程下載。