json转换与解析

public class JsonRequestUtils {

	public static Gson gson = null; // 声明gson对象
	
	static {
		gson = new GsonBuilder().setDateFormat("yyyy-MM-dd HH:mm:ss").create(); // 创建gson对象，并设置日期格式
	}
}

记得导入gson 的jar包

public class RequestResult<T> {

	public static int Success = 1; // 成功
	public static int UnKnow = 0; // 未知
	public static int Faild = -1; // 失败

	private int resultCode; // 状态码 [1:系统成功处理;负数表示系统没有成功处理]
	private String msg; //
	private T data; // 业务数据,状态码为1时,该数据才有效

	public int getResultCode() {
		return resultCode;
	}

	public void setResultCode(int resultCode) {
		this.resultCode = resultCode;
	}

	public String getMsg() {
		return msg;
	}

	public void setMsg(String msg) {
		this.msg = msg;
	}

	public T getData() {
		return data;
	}

	public void setData(T data) {
		this.data = data;
	}
}

 

package com.example.bean;

import java.io.Serializable;

public class Recharge implements Serializable {

	private Integer id;
	private String addr; 
	private String tel; 
	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	public String getAddr() {
		return addr;
	}
	public void setAddr(String addr) {
		this.addr = addr;
	}
	public String getTel() {
		return tel;
	}
	public void setTel(String tel) {
		this.tel = tel;
	}
}

 

package com.example.bean;

import java.io.Serializable;
import java.util.List;

public class RechargeList implements Serializable  {

	private int id;
	private List<Recharge> rList;
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public List<Recharge> getrList() {
		return rList;
	}
	public void setrList(List<Recharge> rList) {
		this.rList = rList;
	}
}

 

package com.example.diancai;

import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;

import com.example.bean.Recharge;
import com.example.bean.RechargeList;
import com.google.gson.reflect.TypeToken;

public class MainActivity extends Activity {

	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		initData();
//		initList();
	}
	
	private void initData() {
		Recharge recharge = new Recharge();
		recharge.setId(1);
		recharge.setAddr("武汉");
		recharge.setTel("110");
		RequestResult<Recharge> rr = new RequestResult<Recharge>();
		rr.setData(recharge);
		String str = JsonRequestUtils.gson.toJson(rr);
		Log.v("test", str);
		
		TypeToken<RequestResult<Recharge>> typeToken = new TypeToken<RequestResult<Recharge>>() {
		};
		RequestResult<Recharge> obj = JsonRequestUtils.gson.fromJson(str, typeToken.getType());
		
		Log.v("test", "" + obj.getData().getAddr());
	}
	
	private void initList() {
		
		Recharge recharge1 = new Recharge();
		recharge1.setId(1);
		recharge1.setAddr("武汉");
		recharge1.setTel("110");
		Recharge recharge2 = new Recharge();
		recharge2.setId(2);
		recharge2.setAddr("武汉");
		recharge2.setTel("110");
		
		List<Recharge> rList = new ArrayList<Recharge>();
		rList.add(recharge1);
		rList.add(recharge2);
		RechargeList reList = new RechargeList();
		reList.setrList(rList);
		
		String str = JsonRequestUtils.gson.toJson(reList);
		Log.v("test", str);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}
}

 

 

 

package com.example.diancai;

import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnCancelListener;
import android.view.LayoutInflater;
import android.view.View;

public class MyProgressDialog {

	Dialog dialog;
	Context context;

	public MyProgressDialog(Context context) {
		this.context = context;
		dialog = new Dialog(context, R.style.dialog);
		dialog.setOnCancelListener(onCancelListener);
	}
	
	public void initDialog(){
		
		LayoutInflater inflater=(LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
		View view=inflater.inflate(R.layout.myprogressdialog, null);
		dialog.setContentView(view);
		dialog.show();
	}

	OnCancelListener onCancelListener = new OnCancelListener() {

		@Override
		public void onCancel(DialogInterface dialog) {
			dialog.dismiss();
		}
	};
}

 

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" 
    android:gravity="center">
		<TextView android:layout_width="fill_parent"
		    android:layout_height="wrap_content"
		    android:text="你好"
		    android:gravity="center"/>
		
		<Button
		    android:layout_width="fill_parent"
		    android:layout_height="wrap_content"
		    android:text="点菜"
		    />
   
		<Button
		    android:layout_width="fill_parent"
		    android:layout_height="wrap_content"
		    android:text="取消"
		    />
</LinearLayout>

 

 

 <style name="dialog" parent="@android:style/Theme.Dialog">
		<item name="android:windowFrame">@null</item>
		<item name="android:windowIsFloating">true</item>
		<item name="android:windowIsTranslucent">true</item>
		<item name="android:windowNoTitle">true</item>
		<item name="android:backgroundDimEnabled">true</item>
		<item name="android:windowBackground">@color/blue</item>
	</style>