formfile文件上传使用示例_Java教程-查字典教程网
formfile文件上传使用示例
formfile文件上传使用示例
发布时间:2016-12-28 来源:查字典编辑
摘要:复制代码代码如下:packageTOOLS;importjava.io.BufferedReader;importjava.io.File;...

复制代码 代码如下:

package TOOLS;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.io.OutputStream;

import java.net.InetAddress;

import java.net.Socket;

import java.net.URL;

import java.util.Map;

import android.util.Log;

/**

* 上传的文件

*/

public class FormFile {

private final static String LOGKEY = "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";

/**

*

* @param filname

* 文件名称

* @param data

* 上传的文件数据

* @param parameterName

* 参数

* @param contentType

* 内容类型

*/

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;

}

/**

*

* @param filname

* 文件名

* @param file

* 上传的文件

* @param parameterName

* 参数

* @param contentType

* 内容内容类型

*/

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;

}

private String Opertype=null;

public void setOper(String Opertype){

this.Opertype=Opertype;

}

public boolean post(String path, Map<String, String> params)

throws Exception {

final String BOUNDARY = "--------------7da2137580612"; // 数据分隔线

final String endline = "--" + BOUNDARY + "--rn";// 数据结束标志

int fileDataLength = 0;

// 得到文件类型数据的总长度

StringBuilder fileExplain = new StringBuilder();

fileExplain.append("--");

fileExplain.append(BOUNDARY);

fileExplain.append("rn");

fileExplain.append("Content-Disposition: form-data;name=""

+ getParameterName() + "";filename="" + getFilname()

+ ""rn");

fileExplain.append("Content-Type: " + getContentType() + "rnrn");

fileExplain.append("rn");

fileDataLength += fileExplain.length();

if (getInStream() != null) {

fileDataLength += getFile().length();

} else {

fileDataLength += 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("rn");

textEntity.append("Content-Disposition: form-data; name=""

+ entry.getKey() + ""rnrn");

textEntity.append(entry.getValue());

textEntity.append("rn");

}

Log.v(LOGKEY, textEntity.toString());

// 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);

Log.v(LOGKEY, url.toString());

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()+"?"+Opertype + " HTTP/1.1rn";

Log.v(LOGKEY, requestmethod);

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, */*rn";

outStream.write(accept.getBytes());

String language = "Accept-Language: zh-CNrn";

outStream.write(language.getBytes());

String contenttype = "Content-Type: multipart/form-data; boundary="

+ BOUNDARY + "rn";

outStream.write(contenttype.getBytes());

String contentlength = "Content-Length: " + dataLength + "rn";

outStream.write(contentlength.getBytes());

String alive = "Connection: Keep-Alivern";

outStream.write(alive.getBytes());

String host = "Host: " + url.getHost() + ":" + port + "rn";

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("rn".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

StringBuilder fileEntity = new StringBuilder();

fileEntity.append("--");

fileEntity.append(BOUNDARY);

fileEntity.append("rn");

fileEntity.append("Content-Disposition: form-data;name=""

+ getParameterName() + "";filename="" + getFilname()

+ ""rn");

fileEntity.append("Content-Type: " + getContentType() + "rnrn");

outStream.write(fileEntity.toString().getBytes());

if (getInStream() != null) {

byte[] buffer = new byte[1024];

int len = 0;

while ((len = getInStream().read(buffer, 0, 1024)) != -1) {

outStream.write(buffer, 0, len);

}

getInStream().close();

} else {

outStream.write(getData(), 0, getData().length);

}

outStream.write("rn".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;

}

}

//测试代码

File iconFile = new File("file路径");

String url="htttp://192.168.1.101:8080/APP/initServlet";

Map<String, String> map = new HashMap<String, String>();//表单内容

map.put("name","blog");

if (iconFile != null) {

FormFile uploadfile = new FormFile(iconFile.getName(),

iconFile, "iconfile", "image/jpeg");

uploadfile.setOper("action=insertusr");//在url上插入?action=insertusr

try {

boolean isok = uploadfile.post(url, map);

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

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