Android实现上传文件到服务器实例详解

package com.ljq.utils;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.InputStream;/** * 上传文件 */public class FormFile {  /* 上传文件的数据 */  private byte[] data;  private InputStream inStream;  private File file;  /* 文件名称 */  private String filname;  /* 请求参数名称*/  private String parameterName;  /* 内容类型 */  private String contentType = "application/octet-stream";    public FormFile(String filname, byte[] data, String parameterName, String contentType) {    this.data = data;    this.filname = filname;    this.parameterName = parameterName;    if(contentType!=null) this.contentType = contentType;  }    public FormFile(String filname, File file, String parameterName, String contentType) {    this.filname = filname;    this.parameterName = parameterName;    this.file = file;    try {      this.inStream = new FileInputStream(file);    } catch (FileNotFoundException e) {      e.printStackTrace();    }    if(contentType!=null) this.contentType = contentType;  }    public File getFile() {    return file;  }  public InputStream getInStream() {    return inStream;  }  public byte[] getData() {    return data;  }  public String getFilname() {    return filname;  }  public void setFilname(String filname) {    this.filname = filname;  }  public String getParameterName() {    return parameterName;  }  public void setParameterName(String parameterName) {    this.parameterName = parameterName;  }  public String getContentType() {    return contentType;  }  public void setContentType(String contentType) {    this.contentType = contentType;  }  }

package com.ljq.utils;import java.io.BufferedReader;import java.io.InputStreamReader;import java.io.OutputStream;import java.net.InetAddress;import java.net.Socket;import java.net.URL;import java.util.Map;/** * 上传文件到服务器 *  * @author Administrator * */public class SocketHttpRequester {  /**   * 直接通过HTTP协议提交数据到服务器,实现如下面表单提交功能:   *  <FORM METHOD=POST ACTION="http://192.168.1.101:8083/upload/servlet/UploadServlet" enctype="multipart/form-data">      <INPUT TYPE="text" NAME="name">      <INPUT TYPE="text" NAME="id">      <input type="file" name="imagefile"/>      <input type="file" name="zip"/>     </FORM>   * @param path 上传路径(注：避免使用localhost或127.0.0.1这样的路径测试，因为它会指向手机模拟器，你可以使用http://www.iteye.cn或http://192.168.1.101:8083这样的路径测试)   * @param params 请求参数 key为参数名,value为参数值   * @param file 上传文件   */  public static boolean post(String path, Map<String, String> params, FormFile[] files) throws Exception{       final String BOUNDARY = "---------------------------7da2137580612"; //数据分隔线    final String endline = "--" + BOUNDARY + "--/r/n";//数据结束标志        int fileDataLength = 0;    for(FormFile uploadFile : files){//得到文件类型数据的总长度      StringBuilder fileExplain = new StringBuilder();       fileExplain.append("--");       fileExplain.append(BOUNDARY);       fileExplain.append("/r/n");       fileExplain.append("Content-Disposition: form-data;name=/""+ uploadFile.getParameterName()+"/";filename=/""+ uploadFile.getFilname() + "/"/r/n");       fileExplain.append("Content-Type: "+ uploadFile.getContentType()+"/r/n/r/n");       fileExplain.append("/r/n");       fileDataLength += fileExplain.length();      if(uploadFile.getInStream()!=null){        fileDataLength += uploadFile.getFile().length();       }else{         fileDataLength += uploadFile.getData().length;       }    }    StringBuilder textEntity = new StringBuilder();    for (Map.Entry<String, String> entry : params.entrySet()) {//构造文本类型参数的实体数据      textEntity.append("--");      textEntity.append(BOUNDARY);      textEntity.append("/r/n");      textEntity.append("Content-Disposition: form-data; name=/""+ entry.getKey() + "/"/r/n/r/n");      textEntity.append(entry.getValue());      textEntity.append("/r/n");    }    //计算传输给服务器的实体数据总长度    int dataLength = textEntity.toString().getBytes().length + fileDataLength + endline.getBytes().length;        URL url = new URL(path);    int port = url.getPort()==-1 ? 80 : url.getPort();    Socket socket = new Socket(InetAddress.getByName(url.getHost()), port);          OutputStream outStream = socket.getOutputStream();    //下面完成HTTP请求头的发送    String requestmethod = "POST "+ url.getPath()+" HTTP/1.1/r/n";    outStream.write(requestmethod.getBytes());    String accept = "Accept: image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*/r/n";    outStream.write(accept.getBytes());    String language = "Accept-Language: zh-CN/r/n";    outStream.write(language.getBytes());    String contenttype = "Content-Type: multipart/form-data; boundary="+ BOUNDARY+ "/r/n";    outStream.write(contenttype.getBytes());    String contentlength = "Content-Length: "+ dataLength + "/r/n";    outStream.write(contentlength.getBytes());    String alive = "Connection: Keep-Alive/r/n";    outStream.write(alive.getBytes());    String host = "Host: "+ url.getHost() +":"+ port +"/r/n";    outStream.write(host.getBytes());    //写完HTTP请求头后根据HTTP协议再写一个回车换行    outStream.write("/r/n".getBytes());    //把所有文本类型的实体数据发送出来    outStream.write(textEntity.toString().getBytes());          //把所有文件类型的实体数据发送出来    for(FormFile uploadFile : files){      StringBuilder fileEntity = new StringBuilder();       fileEntity.append("--");       fileEntity.append(BOUNDARY);       fileEntity.append("/r/n");       fileEntity.append("Content-Disposition: form-data;name=/""+ uploadFile.getParameterName()+"/";filename=/""+ uploadFile.getFilname() + "/"/r/n");       fileEntity.append("Content-Type: "+ uploadFile.getContentType()+"/r/n/r/n");       outStream.write(fileEntity.toString().getBytes());       if(uploadFile.getInStream()!=null){         byte[] buffer = new byte[1024];         int len = 0;         while((len = uploadFile.getInStream().read(buffer, 0, 1024))!=-1){           outStream.write(buffer, 0, len);         }         uploadFile.getInStream().close();       }else{         outStream.write(uploadFile.getData(), 0, uploadFile.getData().length);       }       outStream.write("/r/n".getBytes());    }    //下面发送数据结束标志，表示数据已经结束    outStream.write(endline.getBytes());        BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));    if(reader.readLine().indexOf("200")==-1){//读取web服务器返回的数据，判断请求码是否为200，如果不是200，代表请求失败      return false;    }    outStream.flush();    outStream.close();    reader.close();    socket.close();    return true;  }    /**   * 提交数据到服务器   * @param path 上传路径(注：避免使用localhost或127.0.0.1这样的路径测试，因为它会指向手机模拟器，你可以使用http://www.itcast.cn或http://192.168.1.10:8080这样的路径测试)   * @param params 请求参数 key为参数名,value为参数值   * @param file 上传文件   */  public static boolean post(String path, Map<String, String> params, FormFile file) throws Exception{    return post(path, params, new FormFile[]{file});  }}

package com.ljq.activity;import java.io.File;import java.util.HashMap;import java.util.Map;import android.app.Activity;import android.os.Bundle;import android.os.Environment;import android.os.Handler;import android.util.Log;import com.ljq.utils.FormFile;import com.ljq.utils.SocketHttpRequester;public class MainActivity extends Activity {  private File file;  private Handler handler;  private static final String TAG="MainActivity";  @Override  public void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.main);    Log.i(TAG, "onCreate");        file = new File(Environment.getExternalStorageDirectory(), "123.rmvb");    Log.i(TAG, "照片文件是否存在："+file);    handler=new Handler();    handler.post(runnable);  }    Runnable runnable=new Runnable() {      public void run() {      Log.i(TAG, "runnable run");      uploadFile(file);      handler.postDelayed(runnable, 5000);    }    };    /**   * 上传图片到服务器   *    * @param imageFile 包含路径   */  public void uploadFile(File imageFile) {    Log.i(TAG, "upload start");    try {      String requestUrl = "http://192.168.1.101:8083/upload/upload/execute.do";      //请求普通信息      Map<String, String> params = new HashMap<String, String>();      params.put("username", "张三");      params.put("pwd", "zhangsan");      params.put("age", "21");      params.put("fileName", imageFile.getName());      //上传文件      FormFile formfile = new FormFile(imageFile.getName(), imageFile, "image", "application/octet-stream");            SocketHttpRequester.post(requestUrl, params, formfile);      Log.i(TAG, "upload success");    } catch (Exception e) {      Log.i(TAG, "upload error");      e.printStackTrace();    }    Log.i(TAG, "upload end");  }}

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"   package="com.ljq.activity"   android:versionCode="1"   android:versionName="1.0">  <application android:icon="@drawable/icon" android:label="@string/app_name">    <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="4" />  <uses-permission android:name="android.permission.INTERNET" /> </manifest> 

package com.ljq.action;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import javax.servlet.http.HttpServletRequest;import org.apache.struts2.ServletActionContext;import com.opensymphony.xwork2.ActionSupport;/** * 获取Android端上传过来的信息 *  * @author Administrator * */@SuppressWarnings("serial")public class UploadAction extends ActionSupport {  // 上传文件域  private File image;  // 上传文件类型  private String imageContentType;  // 封装上传文件名  private String imageFileName;  // 接受依赖注入的属性  private String savePath;  @Override  public String execute() {    HttpServletRequest request=ServletActionContext.getRequest();    FileOutputStream fos = null;    FileInputStream fis = null;    try {      System.out.println("获取Android端传过来的普通信息：");      System.out.println("用户名："+request.getParameter("username"));      System.out.println("密码："+request.getParameter("pwd"));      System.out.println("年龄："+request.getParameter("age"));      System.out.println("文件名："+request.getParameter("fileName"));      System.out.println("获取Android端传过来的文件信息：");      System.out.println("文件存放目录: "+getSavePath());      System.out.println("文件名称: "+imageFileName);      System.out.println("文件大小: "+image.length());      System.out.println("文件类型: "+imageContentType);            fos = new FileOutputStream(getSavePath() + "/" + getImageFileName());      fis = new FileInputStream(getImage());      byte[] buffer = new byte[1024];      int len = 0;      while ((len = fis.read(buffer)) != -1) {        fos.write(buffer, 0, len);      }      System.out.println("文件上传成功");    } catch (Exception e) {      System.out.println("文件上传失败");      e.printStackTrace();    } finally {      close(fos, fis);    }    return SUCCESS;  }  /**   * 文件存放目录   *    * @return   */  public String getSavePath() throws Exception{    return ServletActionContext.getServletContext().getRealPath(savePath);   }  public void setSavePath(String savePath) {    this.savePath = savePath;  }  public File getImage() {    return image;  }  public void setImage(File image) {    this.image = image;  }  public String getImageContentType() {    return imageContentType;  }  public void setImageContentType(String imageContentType) {    this.imageContentType = imageContentType;  }  public String getImageFileName() {    return imageFileName;  }  public void setImageFileName(String imageFileName) {    this.imageFileName = imageFileName;  }  private void close(FileOutputStream fos, FileInputStream fis) {    if (fis != null) {      try {        fis.close();        fis=null;      } catch (IOException e) {        System.out.println("FileInputStream关闭失败");        e.printStackTrace();      }    }    if (fos != null) {      try {        fos.close();        fis=null;      } catch (IOException e) {        System.out.println("FileOutputStream关闭失败");        e.printStackTrace();      }    }  }}

<?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>  <!-- 该属性指定需要Struts2处理的请求后缀，该属性的默认值是action，即所有匹配*.action的请求都由Struts2处理。    如果用户需要指定多个请求后缀，则多个后缀之间以英文逗号（,）隔开。 -->  <constant name="struts.action.extension" value="do"/>  <!-- 设置浏览器是否缓存静态内容,默认值为true(生产环境下使用),开发阶段最好关闭 -->  <constant name="struts.serve.static.browserCache" value="false"/>  <!-- 当struts的配置文件修改后,系统是否自动重新加载该文件,默认值为false(生产环境下使用),开发阶段最好打开 -->  <constant name="struts.configuration.xml.reload" value="true"/>  <!-- 开发模式下使用,这样可以打印出更详细的错误信息 -->  <constant name="struts.devMode" value="true"/>  <!-- 默认的视图主题 -->  <constant name="struts.ui.theme" value="simple"/>  <!--<constant name="struts.objectFactory" value="spring" />-->  <!--解决乱码  -->  <constant name="struts.i18n.encoding" value="UTF-8"/>  <!-- 指定允许上传的文件最大字节数。默认值是2097152(2M) -->  <constant name="struts.multipart.maxSize" value="22097152"/>  <!-- 设置上传文件的临时文件夹,默认使用javax.servlet.context.tempdir -->  <constant name="struts.multipart.saveDir " value="d:/tmp"/>    <package name="upload" namespace="/upload" extends="struts-default">    <action name="execute" class="com.ljq.action.UploadAction">      <!-- 动态设置savePath的属性值 -->      <param name="savePath">/image</param>      <result name="success">/WEB-INF/page/message.jsp</result>    </action>  </package></struts>

<?xml version="1.0" encoding="UTF-8"?><web-app 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">  <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>    <filter>    <filter-name>strutsCleanup</filter-name>    <filter-class>      org.apache.struts2.dispatcher.ActionContextCleanUp    </filter-class>  </filter>  <filter-mapping>    <filter-name>strutsCleanup</filter-name>    <url-pattern>/*</url-pattern>  </filter-mapping>    <welcome-file-list>    <welcome-file>index.jsp</welcome-file>  </welcome-file-list></web-app>