首先来测试文件上传
index.jsp:
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="/videonews/ManagerServlet" method="post" enctype="multipart/form-data">
视频标题：<input name="title" type="text"><br/>
视频时长：<input name="timelength" type="text"><br/>
视频文件：<input name="videofile" type="file"><br/>
<input type="submit" value=" 提 交 "/>
</form>
</body>
</html>
ManagerServlet.java:
package cn.leigo.servlet;
import java.io.File;
import java.io.IOException;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
public class ManagerServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String title = request.getParameter("title");
String timelength = request.getParameter("timelength");
System.out.println("标题：" + title);
System.out.println("时长：" + timelength + "分钟");
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
boolean isMultipart = ServletFileUpload.isMultipartContent(request);
if (isMultipart) {
try {
FileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
List<FileItem> items = upload.parseRequest(request);
// /files
String dir = request.getSession().getServletContext()
.getRealPath("/files");
File dirFile = new File(dir);
if(!dirFile.exists()){
dirFile.mkdirs();
}
for (FileItem item : items) {
if (item.isFormField()) { // 如果是文本类型参数
String name = item.getName();
String value = item.getString();
System.out.println(name + " = " + value);
} else { // 如果是文件类型参数
System.out.println(dir);
File saveFile = new File(dirFile, item.getName());
item.write(saveFile);
}
}
} catch (Exception e) {
e.printStackTrace();
}
} else {
doGet(request, response);
}
}
}
这里要导入commons-fileupload-1.2.2.jar、commons-io-2.0.1.jar
HTTP请求：
---------------------------74076595754525280714011745多了两个减号
-----------------------------74076595754525280714011745
在newsmanager工程下新建两个工具类：
FormFile.java：
package cn.leigo.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(File file, String parameterName, String contentType) {
this.filname = file.getName();
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;
}
}
SocketHttpRequester.java:
package cn.leigo.utils;
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.InetAddress;
import java.net.Socket;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
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 org.apache.http.message.BasicNameValuePair;
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://192.168.0.200:8080/ssi/fileload/test.do"
* 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.google.com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[] 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");
fileDataLength += fileExplain.length();
if (uploadFile.getInStream() != null) {
fileDataLength += uploadFile.getFile().length();
} else {
fileDataLength += uploadFile.getData().length;
}
fileDataLength += "\r\n".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 });
}
/**
* 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 encode
* 编码
*/
public static byte[] postFromHttpClient(String path,
Map<String, String> params, String encode) throws Exception {
List<NameValuePair> formparams = new ArrayList<NameValuePair>();// 用于存放请求参数
for (Map.Entry<String, String> entry : params.entrySet()) {
formparams.add(new BasicNameValuePair(entry.getKey(), entry
.getValue()));
}
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formparams,
encode);
HttpPost httppost = new HttpPost(path);
httppost.setEntity(entity);
HttpClient httpclient = new DefaultHttpClient();// 看作是浏览器
HttpResponse response = httpclient.execute(httppost);// 发送post请求
return readStream(response.getEntity().getContent());
}
/**
* 发送请求
*
* @param path
* 请求路径
* @param params
* 请求参数 key为参数名称 value为参数值
* @param encode
* 请求参数的编码
*/
public static byte[] post(String path, Map<String, String> params,
String encode) throws Exception {
// String params = "method=save&name="+ URLEncoder.encode("老毕",
// "UTF-8")+ "&age=28&";//需要发送的参数
StringBuilder parambuilder = new StringBuilder("");
if (params != null && !params.isEmpty()) {
for (Map.Entry<String, String> entry : params.entrySet()) {
parambuilder.append(entry.getKey()).append("=")
.append(URLEncoder.encode(entry.getValue(), encode))
.append("&");
}
parambuilder.deleteCharAt(parambuilder.length() - 1);
}
byte[] data = parambuilder.toString().getBytes();
URL url = new URL(path);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoOutput(true);// 允许对外发送请求参数
conn.setUseCaches(false);// 不进行缓存
conn.setConnectTimeout(5 * 1000);
conn.setRequestMethod("POST");
// 下面设置http请求头
conn.setRequestProperty(
"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, */*");
conn.setRequestProperty("Accept-Language", "zh-CN");
conn.setRequestProperty(
"User-Agent",
"Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)");
conn.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded");
conn.setRequestProperty("Content-Length", String.valueOf(data.length));
conn.setRequestProperty("Connection", "Keep-Alive");
// 发送参数
DataOutputStream outStream = new DataOutputStream(
conn.getOutputStream());
outStream.write(data);// 把参数发送出去
outStream.flush();
outStream.close();
if (conn.getResponseCode() == 200) {
return readStream(conn.getInputStream());
}
return null;
}
/**
* 读取流
*
* @param inStream
* @return 字节数组
* @throws Exception
*/
public static byte[] readStream(InputStream inStream) throws Exception {
ByteArrayOutputStream outSteam = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = -1;
while ((len = inStream.read(buffer)) != -1) {
outSteam.write(buffer, 0, len);
}
outSteam.close();
inStream.close();
return outSteam.toByteArray();
}
}
也可以使用HttpClient自带的上传文件功能。
MainActivity.java：
@Override
public void onClick(View v) {
String title = mTitleEditText.getText().toString();
String timelength = mTimelengthEditText.getText().toString();
String fileName = mFileNameEditText.getText().toString();
if (!TextUtils.isEmpty(title) && !TextUtils.isEmpty(timelength)) {
if (!TextUtils.isEmpty(fileName)) {
if (Environment.getExternalStorageState().equals(
Environment.MEDIA_MOUNTED)
|| Environment.getExternalStorageState().equals(
Environment.MEDIA_MOUNTED_READ_ONLY)) {
File uploadFile = new File(
Environment.getExternalStorageDirectory(), fileName);
if (uploadFile.exists()) {
boolean isSuccess = NewsService.save(title, timelength,
fileName);
if (!isSuccess) {
Toast.makeText(this, R.string.fail,
Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(this, R.string.success,
Toast.LENGTH_SHORT).show();
}
} else {
Toast.makeText(this, R.string.filenotexists,
Toast.LENGTH_SHORT).show();
}
}
} else {
boolean isSuccess = NewsService.save(title, timelength);
if (!isSuccess) {
Toast.makeText(this, R.string.fail, Toast.LENGTH_SHORT)
.show();
} else {
Toast.makeText(this, R.string.success, Toast.LENGTH_SHORT)
.show();
}
}
} else {
Toast.makeText(this, R.string.error, Toast.LENGTH_SHORT).show();
}
}
NewsService.java：
/**
* 保存数据
*
* @param title
* 标题
* @param timelength
* 时长
* @param fileName
* 文件名
* @return 请求是否成功
*/
public static boolean save(String title, String timelength, String fileName) {
String path = "http://192.168.1.100:8080/videonews/ManagerServlet";
Map<String, String> params = new HashMap<String, String>();
params.put("title", title);
params.put("timelength", timelength);
File file = new File(Environment.getExternalStorageDirectory(),
fileName);
FormFile formFile = new FormFile(file, "videofile", "image/jpeg");
try {
return SocketHttpRequester.post(path, params, formFile);
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
