android文件上传 socket实现

来源：互联网发布：锻炼英语听力的软件编辑：程序博客网时间：2024/06/05 00:15

做了很久的菜鸟了，总是在网上找代码，但发现这段代码找不到，所以就自己放上来了。

在这非常的感谢传智播客，这段代码也是黎活明老师的，感觉非常的好用，所以就上传上来分享给大家。

至于为什么要用socket实现，那是因为我们常用的HttpUrlConnection 对话是使用了缓存机制的，对上传较大文件问题可想而知。

其实也就一个javaben,一个工具类。对发送文件的http表单数据做了封装。感觉非常好用。。。感谢黎老师

使用方法：

1. FormFile formFile = new FormFile(File file, String parameterName（参数名称）, String contentType（文件类型，如："image/jpeg"）)

2. SocketHttpRequester .post(String path,HashMap<String,String> params,FormFile formFile);

---------------FormFile.java

package cn.itcast.utils;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.InputStream;

/**

* 上传文件 java bean

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;

}

//get及set省略

}

--------------SocketHttpRequester .java

package cn.itcast.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">

</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.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[] 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 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 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();

}