基本信息
源码名称：android json请求解析入门示例代码
源码大小：0.63M
文件格式：.rar
开发语言：Java
更新时间：2015-12-14
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源码介绍
：用于测试请求json数据
：用于测试请求json数据
package com.android.jsontest;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends Activity {
private Button btn2,btn3,btn4,btn5,btn6,btn7;
private TextView txt1;
private String baseUrl = "http://192.168.88.181:8080/ship/servlet/getposinfo";
private String str = "";
private Handler handler = new Handler(){
public void handlerMessage(Message msg){
//返回的字符串 ，直接是一个数组
// [{"devid":"1234567800","latitude":"29.4963","longitude":"116.189","postime":"2014-06-10 12:13:00"},
// {"devid":"1234567832","latitude":"29.4943","longitude":"1161.129","postime":"2014-06-11 12:13:00"}]
if(msg.what == 1){
Log.v("ZMS", "使用httpclient,返回的json");
try{
JSONArray jsonArray = new JSONArray(String.valueOf(msg.obj));
txt1.setText(" ");
str = "httpclient:";
for(int i = 0;i<jsonArray.length();i ){
JSONObject jsonObject2 = (JSONObject)jsonArray.opt(i);
str = str "第" i "个，devid:" jsonObject2.getString("devid") "维度:"
jsonObject2.getString("latitude") "\n";
txt1.setText(str);
Log.v("ZMS", str);
}
}catch(JSONException e){
e.printStackTrace();
}
}
else if(msg.what == 2){
Log.v("ZMS","使用httpurlconnection返回的json");
try{
JSONArray jsonArray = new JSONArray(String.valueOf(msg.obj));
txt1.setText(" ");
str = "urlconnect";
for(int i=0;i<jsonArray.length();i ){
JSONObject jsonObject2 = (JSONObject)jsonArray.opt(i);
str = str "第" i "个，devid:" jsonObject2.getString("devid") "维度:"
jsonObject2.getString("latitude") "\n";
txt1.setText(str);
Log.v("ZMS", str);
}
}catch(JSONException e){
e.printStackTrace();
}
}
super.handleMessage(msg);
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
txt1 = (TextView)findViewById(R.id.textView1);
//最简单的直接一个对象
btn2 = (Button)findViewById(R.id.button2);
btn2.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
txt1.setText("");
str="";
try{
//{"username":"ZMS","age":"23","addr","from china"};
String json = "{\"username\":\"zms\",\"age\":43,\"addr\":\"武汉\"}";
JSONObject jsonObject2 = new JSONObject(json);
str = "名字:" jsonObject2.getString("username") "年薪:" jsonObject2.getString("age") jsonObject2.getString("addr") "\n";
txt1.setText(str);
Log.v("ZMS", str);
}catch(JSONException e){
e.printStackTrace();
}
}
});
//对象里面有数租
btn3 = (Button)findViewById(R.id.button3);
btn3.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
txt1.setText("");
str="";
try{
//{"username":"zms",age:11,"jicheng":[{"zhengshu":"PMP","date":"2011年"},{"zhengshu":"信息系统项目管理
//师","date","2012年"}],"addr":"江西"}
// 这种也属于 对象里有数组 {"json":[{"username":"zms","date":"2011年"},{"username":"ivy","date","2012年"}]}
String json= "{\"username\":\"张木生\",age:11,\"jicheng\":[{\"zhengshu\":\"PMP\",\"date\":\"2011年\"},{\"zhengshu\":\"信息系统项目管理师\",\"date\":\"2012年\"}],\"addr\":\"江西\"}";
JSONObject jsonObject2 = new JSONObject(json);
str = "名字:" jsonObject2.getString("username");
str = str "工龄:" jsonObject2.getString("age") "证书:";
JSONArray jsonArray = jsonObject2.getJSONArray("jicheng");
for(int i=0;i<jsonArray.length();i ){
JSONObject jsonObjectSon = (JSONObject)jsonArray.opt(i);
str = str jsonObjectSon.getString("zhengshu") "年份：" jsonObjectSon.getString("date");
}
str =str "籍贯" jsonObject2.getString("addr");
txt1.setText(str);
Log.v("ZMS", str);
}catch(JSONException e){
e.printStackTrace();
}
}
});
//直接一个数组
btn4 = (Button)findViewById(R.id.button4);
btn4.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Log.v("ZMS", "响应4");
txt1.setText("");
str="";
//返回的字符串直接是个数组
// [{"devid":"1234567800","latitude":"29.4963","longitude":"116.189"},{"devid":"1234567832","latitude":"29.4943","longitude":"1161.129"}]
String json = "[{\"devid\":\"1234567800\",\"latitude\":\"29.4963\",\"longitude\":\"116.189\"},{\"devid\":\"1234567832\",\"latitude\":\"29.4943\",\"longitude\":\"1161.129\"}]";
try{
JSONArray jsonArray = new JSONArray(json);
for(int i=0;i<jsonArray.length();i ){
JSONObject jsonObject2 = (JSONObject)jsonArray.opt(i);
str=str "第" i "个，devid" jsonObject2.getString("devid") "维度：" jsonObject2.getString("latitude") "经度:" jsonObject2.getString("longitude") "\n";
}
txt1.setText(str);
Log.v("ZMS", str);
}catch(JSONException e){
e.printStackTrace();
}
}
});
//数组里有数组
btn5 = (Button)findViewById(R.id.button5);
btn5.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
txt1.setText("");
str="";
//返回的字符串直接是个数组
/*[{"devid":"1234567800","gps":[{"time":"2014-11-12","latitude":"29.4963","longitude":"116.189"},{"time":"2014-11-12","latitude":"29.4963","longitude":"116.189" }],"devname":"赣01"},
{"devid":"1234567800","gps":[{"time":"2014-11-12","latitude":"29.4963","longitude":"116.189"},{"time":"2014-11-12","latitude":"29.4963","longitude":"116.189" }],"devname":"赣92"},
{"devid":"1234567800","gps":[{"time":"2014-11-12","latitude":"29.4963","longitude":"116.189"},{"time":"2014-11-12","latitude":"29.4963","longitude":"116.189" }],"devname":"赣43"},
],
*/
String json="["
" {\"devid\":\"1234567800\",\"gps\":[{\"time\":\"2014-11-12\",\"latitude\":\"29.4963\",\"longitude\":\"116.189\"},{\"time\":\"2014-11-12\",\"latitude\":\"29.4963\",\"longitude\":\"116.189\" }],\"devname\":\"赣01\"},"
" {\"devid\":\"1234567800\",\"gps\":[{\"time\":\"2014-11-12\",\"latitude\":\"29.4963\",\"longitude\":\"116.189\"},{\"time\":\"2014-11-12\",\"latitude\":\"29.4963\",\"longitude\":\"116.189\" }],\"devname\":\"赣92\"},"
" {\"devid\":\"1234567800\",\"gps\":[{\"time\":\"2014-11-12\",\"latitude\":\"29.4963\",\"longitude\":\"116.189\"},{\"time\":\"2014-11-12\",\"latitude\":\"29.4963\",\"longitude\":\"116.189\" }],\"devname\":\"赣43\"}"
"]";
try {
JSONArray jsonArray = new JSONArray(json);
for (int i=0;i<jsonArray.length();i )
{String tpstr="";JSONObject jsonObject5 = (JSONObject)jsonArray.opt(i);
str=str "第" i "条船，设备号devid:" jsonObject5.getString("devid");
JSONArray jsonArray5 = jsonObject5.getJSONArray("gps");
for (int j=0;j<jsonArray5.length();j )
{JSONObject jsonOb5Son=(JSONObject)jsonArray5.opt(j);
tpstr="采集时间:" jsonOb5Son.getString("time") "维度" jsonOb5Son.getString("latitude") "经度:" jsonOb5Son.getString("longitude");
}str=str tpstr;}
txt1.setText(str);
Log.v("zms", str);} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}}});
//httpclient访问网络返回json
btn6=(Button)findViewById(R.id.button6);
btn6.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
txt1.setText("");
/*从安卓3.0以后，就不允许在主线程中直接访问网络，必须在子线程中访问
* 访问后要修改主线程的UI，需要使用handler通信
*/
accessThread1 mythread1=new accessThread1();
mythread1.start();}});
//httpurlconnection访问网络返回json
btn7=(Button)findViewById(R.id.button7);
btn7.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
txt1.setText("");
/*从安卓3.0以后，就不允许在主线程中直接访问网络，必须在子线程中访问
*访问后要修改主线程的UI，需要使用handler通信
*/
accessThread2 mythread2=new accessThread2();
mythread2.start();
}
});
}
class accessThread1 extends Thread{
@Override
public void run() {
Log.v("zms","线程accessThread开始");
Message msg1=handler.obtainMessage();
msg1.what=1;
msg1.obj=util.getHttpJsonByhttpclient(baseUrl);
handler.sendMessage(msg1);
super.run();
}
}
class accessThread2 extends Thread{
@Override
public void run() {
Log.v("zms","线程accessThread2开始");
Message msg2=handler.obtainMessage();
msg2.what=2;
msg2.obj=util.getHttpJsonByurlconnection(baseUrl);
handler.sendMessage(msg2);
super.run();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}