android客户端通过Get方式提交参数给服务器，使用URL和HttpURLConnection实现，以及乱码问题解决

服务器端的设置

服务器端采用Struts2来接收android端的请求，android版本为2.2.3配置如下：

1:web.xml的配置为

<?xml version="1.0" encoding="UTF-8"?><web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">    <display-name>Struts Blank</display-name>    <filter>        <filter-name>struts2</filter-name>        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>    </filter>    <filter-mapping>        <filter-name>struts2</filter-name>        <url-pattern>/*</url-pattern>    </filter-mapping>    <welcome-file-list>        <welcome-file>index.html</welcome-file>    </welcome-file-list></web-app>

2：VideoManageAction类

package com.capinfotech.android;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.struts2.interceptor.ServletRequestAware;import org.apache.struts2.interceptor.ServletResponseAware;import com.opensymphony.xwork2.ActionSupport;public class VideoManageAction extends ActionSupport implements ServletRequestAware, ServletResponseAware {private HttpServletRequest request;private HttpServletResponse response;public void setServletRequest(HttpServletRequest request) {this.request = request;}public void setServletResponse(HttpServletResponse response) {this.response = response;}public void save() {String method = this.request.getMethod();  //获得requst的方法String  title = null;Integer timelength = null;if("GET".equals(method)) {title = request.getParameter("title");  //获得参数title的值timelength = new Integer(request.getParameter("timelength"));  //获得参数timelength的值System.out.println("title: " + title);     //输出title的值System.out.println("timelength: " + timelength.intValue());    //输出timelength的值} else {title = request.getParameter("title");timelength = new Integer(request.getParameter("timelength"));System.out.println("title: " + title);System.out.println("timelength: " + timelength.intValue());} }}

3：struts.xml的配置为

<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE struts PUBLIC        "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"        "http://struts.apache.org/dtds/struts-2.0.dtd"><struts>   <package name="android" namespace="/android" extends="struts-default">          <action name="upload" class="com.capinfotech.android.VideoManageAction" method="save" >                 </action>          </package></struts>

android端的配置

1：androidmanifest.xml的内容

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"      package="com.capinfotech.upload"      android:versionCode="1"      android:versionName="1.0">    <application android:icon="@drawable/icon" android:label="@string/app_name">     <uses-library android:name="android.test.runner" />          <activity android:name=".MainActivity"                  android:label="@string/app_name">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </application>    <uses-sdk android:minSdkVersion="8" />     <uses-permission android:name="android.permission.INTERNET" />     <instrumentation android:name="android.test.InstrumentationTestRunner"       android:targetPackage="com.capinfotech.upload" android:label="Tests for My App" /></manifest>

2：HttpRequest类的内容

package com.capinfotech.net;import java.io.IOException;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;import java.util.Map;import android.util.Log;public class HttpRequest {private static final String TAG = "HttpRequest";public static boolean sendGetRequest(String path, Map<String, String> params) throws IOException {/* * http://127.0.0.1/AndroidService/android/upload?title=aaa&timelength=90的形式 */StringBuilder sb = new StringBuilder(path);sb.append('?');for(Map.Entry<String, String> entry : params.entrySet()) {sb.append(entry.getKey()).append('=').append(entry.getValue()).append('&');}sb.deleteCharAt(sb.length()-1);try {URL url = new URL(sb.toString());HttpURLConnection conn = (HttpURLConnection)url.openConnection();conn.setRequestMethod("GET");    //设置方法为GETconn.setReadTimeout(5 * 1000);   //设置过期时间为5秒if(conn.getResponseCode() == 200) {  //如果成功返回return true;} } catch (MalformedURLException e) {e.printStackTrace();Log.e(TAG, e.toString());return false;}return false;}}

3：HttpRequestTest类

package com.capinfotech.test;import java.io.IOException;import java.util.HashMap;import java.util.Map;import android.test.AndroidTestCase;import android.util.Log;import com.capinfotech.net.HttpRequest;public class HttpRequestTest extends AndroidTestCase {private static final String TAG = "HttpRequestTest";public void testSendGetRequest() throws IOException {Map<String, String> params = new HashMap<String, String>();params.put("title", "long");params.put("timelength", "80");String path = "http://192.168.1.105/AndroidService/android/upload";if(HttpRequest.sendGetRequest(path, params)) {Log.i(TAG, "success");} else {Log.i(TAG, "failure");}}}

4：测试结果页面

上传的参数中含有中文时

改变方法testSendGetRequest()方法里的几行程序：

Map<String, String> params = new HashMap<String, String>();params.put("title", "变形金刚3");params.put("timelength", "80");

测试结果页面为：

需要修改的程序：

1：HttpRequest类修改为：

package com.capinfotech.net;import java.io.IOException;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;import java.net.URLEncoder;import java.util.Map;import android.util.Log;public class HttpRequest {private static final String TAG = "HttpRequest";public static boolean sendGetRequest(String path, Map<String, String> params, String enc) throws IOException {/* * http://127.0.0.1/AndroidService/android/upload?title=aaa&timelength=90的形式 */StringBuilder sb = new StringBuilder(path);sb.append('?');for(Map.Entry<String, String> entry : params.entrySet()) {sb.append(entry.getKey()).append('=').append(URLEncoder.encode(entry.getValue(), enc)).append('&');  }sb.deleteCharAt(sb.length()-1);try {URL url = new URL(sb.toString());HttpURLConnection conn = (HttpURLConnection)url.openConnection();conn.setRequestMethod("GET");    //设置方法为GETconn.setReadTimeout(5 * 1000);   //设置过期时间为5秒if(conn.getResponseCode() == 200) {  //如果成功返回return true;} } catch (MalformedURLException e) {e.printStackTrace();Log.e(TAG, e.toString());return false;}return false;}}

主要是在函数中添加了一个表示编码的参数enc，用来控制编码的格式问题

2：HttpRequest类修改为

public class HttpRequestTest extends AndroidTestCase {private static final String TAG = "HttpRequestTest";public void testSendGetRequest() throws IOException {Map<String, String> params = new HashMap<String, String>();params.put("title", "变形金刚3");params.put("timelength", "80");String path = "http://192.168.1.105/AndroidService/android/upload";if(HttpRequest.sendGetRequest(path, params, "UTF-8")) {Log.i(TAG, "success");} else {Log.i(TAG, "failure");}}}

3：测试结果：

这时发现在tomcat控制台输出的参数还是乱码的，之后的工作就是修改服务器的程序

4：VideoManageAction类的内容改为

package com.capinfotech.android;import java.io.UnsupportedEncodingException;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.struts2.interceptor.ServletRequestAware;import org.apache.struts2.interceptor.ServletResponseAware;import com.opensymphony.xwork2.ActionSupport;public class VideoManageAction extends ActionSupport implements ServletRequestAware, ServletResponseAware {private HttpServletRequest request;private HttpServletResponse response;public void setServletRequest(HttpServletRequest request) {this.request = request;}public void setServletResponse(HttpServletResponse response) {this.response = response;}public void save() {String method = this.request.getMethod();  //获得requst的方法String  title = null;Integer timelength = null;try {if("GET".equals(method)) {byte[] titleByte = request.getParameter("title").getBytes("iso-8859-1");  //获得title参数对应的二进制数据        title = new String(titleByte, "UTF-8");        timelength = new Integer(request.getParameter("timelength"));  //获得参数timelength的值System.out.println("title: " + title);     //输出title的值System.out.println("timelength: " + timelength.intValue());    //输出timelength的值} else {title = request.getParameter("title");timelength = new Integer(request.getParameter("timelength"));System.out.println("title: " + title);System.out.println("timelength: " + timelength.intValue());    } } catch (UnsupportedEncodingException e) {e.printStackTrace();}  }}

5：测试结果

6：乱码问题总结造成中文乱码的原因有两个：首先，并没有对URL发送的参数进行编码，然后就是服务器端接受参数的问题，Tomcat服务器接收参数时默认为ISO-8859-1，这个编码并不包含中文的编码

android端的程序

1:strings.xml里的内容，定义用到的字符串资源

<?xml version="1.0" encoding="utf-8"?><resources>    <string name="hello">Hello World, MainActivity!</string>    <string name="app_name">上传数据到服务器</string>    <string name="title">视频名称</string>    <string name="timelength">时长</string>    <string name="button">保存</string>    <string name="success">保存成功</string>    <string name="error">保存失败</string></resources>

2：main.xml的内容，定义布局文件

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    ><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:id="@+id/timelength"    /><Button    android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:id="@+id/button"    android:text="@string/button"/></LinearLayout>

3：MainActivity的内容

package com.capinfotech.upload;import java.io.IOException;import java.util.HashMap;import java.util.Map;import com.capinfotech.net.HttpRequest;import android.app.Activity;import android.os.Bundle;import android.util.Log;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;public class MainActivity extends Activity {private static final String TAG = "MainActivity";private EditText titleEditText = null;private EditText timeEditText = null;private Button button = null;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);                titleEditText = (EditText)findViewById(R.id.title);        timeEditText = (EditText)findViewById(R.id.timelength);        button = (Button)findViewById(R.id.button);                button.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {Map<String, String> params = new HashMap<String, String>();params.put("title", titleEditText.getText().toString());   //获取输入的视频的名字params.put("timelength", timeEditText.getText().toString());   //获取输入的视频的时长String path = "http://192.168.1.105/AndroidService/android/upload";  //路径try {if(HttpRequest.sendGetRequest(path, params, "UTF-8")) {Log.i(TAG, "success");Toast.makeText(MainActivity.this, R.string.success, Toast.LENGTH_LONG).show(); //提示保存成功} else {Log.i(TAG, "failure");Toast.makeText(MainActivity.this, R.string.error, Toast.LENGTH_LONG).show(); //提示保存失败}} catch (IOException e) {Log.i(TAG, "failure");Toast.makeText(MainActivity.this, R.string.error, Toast.LENGTH_LONG).show();}}});    }}

4：程序界面与运行效果

android客户端通过Get方式提交参数给服务器，使用URL和HttpURLConnection实现，以及乱码问题解决_第1张图片

更多相关文章

随机推荐