java 截取json

A： 

public static void main(String[] args) {

// TODO Auto-generated method stub

String json = "{'response':{'data':[{'address':'南京市游乐园','province':'江苏','district':'玄武区','city':'南京'}]},'status':'ok'}";

JSONObject jsonObject = JSONObject.fromObject(json);

String response = jsonObject.getString("response");

JSONObject jsonObject2 = JSONObject.fromObject(response);

JSONArray data = jsonObject2.getJSONArray("data");

for (int i = 0; i < data.size(); i++) {

String s = data.getString(i);

JSONObject data2 = JSONObject.fromObject(s);

System.out.println(data2.getString("address"));

System.out.println(data2.getString("province"));

System.out.println(data2.getString("district"));

System.out.println(data2.getString("city"));

}

}

B：

public static void main(String[] args) {

String json = "{"response":{"data":[{"address":"南京市游乐园","province":"江苏","district":"玄武区","city":"南京"}]},"status":"ok"}";

String str[] = json.replaceAll(

".*"address":"(.*?)".*"province":"(.*?)",.*"district":"(.*?)",.*"city":"(.*?)".*",

"$2,$4,$3,$1").split(",");

for (String s : str) {

System.out.println(s);

}

}

 C：还有一个思想就是

 public class Test {

public static void main(String[] args) {

String date = "{'response':{'data':[{'address':'南京市游乐园','province':'江苏','district':'玄武区','city':'南京'}]},'status':'ok'}";
date = date.substring(date.indexOf("[") + 1, date.indexOf("]"));
System.out.println(date);
Gson gson = new Gson();
Info info = gson.fromJson(date, Info.class);
System.out.println(info);//这里就根据info的信息取值就好了
}
}

class Info {
private String address;
private String province;
private String district;
private String city;

public String getAddress() {
return address;
}

public void setAddress(String address) {
this.address = address;
}

public String getProvince() {
return province;
}

public void setProvince(String province) {
this.province = province;
}

public String getDistrict() {
return district;
}

public void setDistrict(String district) {
this.district = district;
}

public String getCity() {
return city;
}

public void setCity(String city) {
this.city = city;
}

@Override
public String toString() {
return "Info [address=" + address + ", province=" + province
+ ", district=" + district + ", city=" + city + "]";
}

public Info(String address, String province, String district, String city) {
super();
this.address = address;
this.province = province;
this.district = district;
this.city = city;
}

public Info() {
super();
}
}