分享两个模拟get和post方法的工具类，让应用能够与服务器进行数据交互

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很久没有码字了，今天跟大家分享一个模拟get和post方法的工具类，在安卓应用中很多都需要跟服务器进行数据交互，这需要两方面的配合，首先服务器端会给应用提供一些数据交互的接口，可是怎样在应用中去调用呢？这就需要用到get和post方法了，下面是自己总结并且一直在用的两个工具类，请看代码：

用来模拟get方法：

package com.standopen.exceptionsdk;import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import android.content.Context;
import android.os.Handler;
import android.os.Message;public class doGet { private Context ctx;
private String url;
private thread_callback callback; public doGet(Context ctx, String url, thread_callback back) {
this.ctx = ctx;
this.url = url;
this.callback = back;
post_thread th = new post_thread(ctx, url);
th.start(); } public class post_thread extends Thread {
private String url;
private Context ctx; public post_thread(Context ctx, String url) {
this.url = url;
this.ctx = ctx;
} Handler handler = new Handler() { @Override
public void handleMessage(Message msg) {
// TODO Auto-generated method stub
super.handleMessage(msg);
// int type = Integer.parseInt(msg.obj.toString());
String back = msg.obj.toString();
callback.callback(back);
}
}; @Override
public void run() {
// TODO Auto-generated method stub
super.run();
String str = null;
try {
str = post(url);
Message msg1 = handler.obtainMessage();
msg1.obj = str;
handler.sendMessage(msg1); } catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
} } @Override
public synchronized void start() {
// TODO Auto-generated method stub
super.start();
} public String post(String url) throws ClientProtocolException,
IOException { String str = "";
HttpClient client = new DefaultHttpClient(); HttpGet get = new HttpGet(url);
HttpResponse response = client.execute(get);
int code = response.getStatusLine().getStatusCode();
if (code == 200) {
InputStream is = response.getEntity().getContent();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = 0;
if ((len = is.read(buffer)) != -1) {
baos.write(buffer, 0, len);
}
byte[] b = baos.toByteArray();
is.close();
baos.close();
str = new String(b, "utf-8"); }
return str;
}}
}

用来模拟post方法：

package com.standopen.exceptionsdk;import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import android.content.Context;
import android.os.Handler;
import android.os.Message;public class doPost { private Context ctx;
private String url;
private thread_callback callback;
private ArrayList<NameValuePair> data = null; public doPost(Context ctx, String url, ArrayList<NameValuePair> data,
thread_callback back) {
this.ctx = ctx;
this.url = url;
this.callback = back;
this.data = data;
post_thread th = new post_thread(ctx, url, data);
th.start(); } public class post_thread extends Thread {
private String url;
private Context ctx; private ArrayList<NameValuePair> data; public post_thread(Context ctx, String url,
ArrayList<NameValuePair> data) {
this.url = url;
this.ctx = ctx;
this.data = data;
} Handler handler = new Handler() { @Override
public void handleMessage(Message msg) {
// TODO Auto-generated method stub
super.handleMessage(msg);
// int type = Integer.parseInt(msg.obj.toString());
String back = msg.obj.toString();
callback.callback(back);
}
}; @Override
public void run() {
// TODO Auto-generated method stub
super.run();
String str = null;
try {
str = post(url);
Message msg1 = handler.obtainMessage();
msg1.obj = str;
handler.sendMessage(msg1); } catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
} } @Override
public synchronized void start() {
// TODO Auto-generated method stub
super.start();
} public String post(String url) throws ClientProtocolException,
IOException { String str = "";
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost(url);
post.setEntity(new UrlEncodedFormEntity(data, "utf-8"));
HttpResponse response = client.execute(post);
int code = response.getStatusLine().getStatusCode();
if (code == 200) {
InputStream is = response.getEntity().getContent();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = 0;
if ((len = is.read(buffer)) != -1) {
baos.write(buffer, 0, len);
}
byte[] b = baos.toByteArray();
is.close();
baos.close();
str = new String(b); }
return str;
} }
}