Android采用GET方法进行网络传值

package deu.hpu.servlet; 
  
import java.io.IOException; 
import java.io.PrintWriter; 
  
import javax.servlet.ServletException; 
import javax.servlet.http.HttpServlet; 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
  
public class ManagerServlet extends HttpServlet { 
  
public void doGet(HttpServletRequest request, HttpServletResponse response) 
throws ServletException, IOException { 
    String title=request.getParameter("title"); 
    title=new String(title.getBytes("ISO8859-1"),"UTF-8"); 
    String timelength=request.getParameter("timelength"); 
    timelength=new String(timelength.getBytes("ISO8859-1"),"UTF-8"); 
    System.out.println("视频名称"+title); 
    System.out.println("时长"+timelength); 
} 
  
public void doPost(HttpServletRequest request, HttpServletResponse response) 
throws ServletException, IOException { 
 doGet(request,response); 
} 
  
} 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
  xmlns:tools="http://schemas.android.com/tools" 
  android:layout_width="fill_parent" 
  android:layout_height="fill_parent" 
  android:orientation="vertical" 
  tools:context="com.example.newsmanager.MainActivity" > 
  
  <TextView 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/title" /> 
  <EditText  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:id="@+id/title"/> 
   
  <TextView 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/timelength" /> 
  <EditText  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:numeric="integer" 
    android:id="@+id/timelength"/>" 
   
  <Button  
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:id="@+id/button" 
    android:onClick="save" 
    android:text="@string/button" 
    /> 
</LinearLayout> 

package com.example.newsmanager; 
  
import com.example.service.NewsService; 
  
import android.app.Activity; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.EditText; 
import android.widget.Toast; 
  
public class MainActivity extends Activity { 
  private EditText titletext; 
  private EditText lengthtext; 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
super.onCreate(savedInstanceState); 
setContentView(R.layout.main); 
titletext=(EditText) findViewById(R.id.title); 
lengthtext=(EditText) findViewById(R.id.timelength); 
} 
boolean flag; 
  public void save(View view) throws Exception{ 
    //开启线程 
    new Thread(new Runnable() { 
      String title=titletext.getText().toString(); 
      String length=lengthtext.getText().toString(); 
@Override 
public void run() { 
boolean result; 
try { 
result = NewsService.save(title,length); 
if(result){ 
//返回主线程显示 
    runOnUiThread(new Runnable() { 
@Override 
public void run() { 
Toast.makeText(getApplicationContext(), R.string.success, 1).show(); 
} 
}); 
   
    }else{ 
     runOnUiThread(new Runnable() { 
@Override 
public void run() { 
Toast.makeText(getApplicationContext(), R.string.error, 1).show(); 
} 
}); 
    } 
} catch (Exception e) { 
// TODO Auto-generated catch block 
e.printStackTrace(); 
} 
} 
}).start(); 
  } 
} 

package com.example.service; 
  
import java.net.HttpURLConnection; 
import java.net.URL; 
import java.net.URLEncoder; 
import java.util.HashMap; 
import java.util.Map; 
  
public class NewsService { 
  /* 
   * 保存数据 
   * title 标题 
   * length 时长 
   * */ 
public static boolean save(String title, String length) throws Exception{ 
String path="http://10.20.124.72:8080/videonews/ManagerServlet"; 
Map<String,String> map=new HashMap<String,String>(); 
map.put("title", title); 
map.put("timelength", length); 
return sendGETRequest(path,map,"UTF-8"); 
} 
  /* 
   * 发送Get请求 
   * path请求路径 
   * map请求参数 
   * */ 
private static boolean sendGETRequest(String path, Map<String, String> map,String ecoding) throws Exception{ 
/*将路径拼成http://10.20.124.72:8080/videonews/ManagerServlet?title=XXX&timelength=90*/ 
StringBuilder url=new StringBuilder(path); 
url.append("?"); 
//map迭代器Entry<Key, Value> 
for(Map.Entry<String, String> entry:map.entrySet()){ 
url.append(entry.getKey()).append("="); 
      //ecoding是上面传来的“UTF-8”，为了防止中文乱码 
url.append(URLEncoder.encode(entry.getValue(), ecoding)); 
url.append("&"); 
} 
url.deleteCharAt(url.length()-1); 
URL url2=new URL(url.toString()); 
HttpURLConnection conn=(HttpURLConnection) url2.openConnection(); 
conn.setConnectTimeout(5000); 
conn.setRequestMethod("GET"); 
if(conn.getResponseCode() == 200){ 
return true; 
} 
return false; 
} 
  
}