apache httpclient3 httpclient4 上传文件名乱码问题

package com.wxl.app;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;

import org.apache.commons.httpclient.methods.multipart.FilePart;
import org.apache.commons.httpclient.methods.multipart.PartSource;
import org.apache.commons.httpclient.util.EncodingUtil;

public class CustomFilePart extends FilePart {

public CustomFilePart(String name, PartSource partSource) {
super(name, partSource);
}

public CustomFilePart(String name, File file, String contentType, String charset) throws FileNotFoundException {
super(name, file, contentType, charset);
}

public CustomFilePart(String name, File file) throws FileNotFoundException {
super(name, file);
}

public CustomFilePart(String name, PartSource partSource, String contentType, String charset) {
super(name, partSource, contentType, charset);
}

public CustomFilePart(String name, String fileName, File file, String contentType, String charset)
throws FileNotFoundException {
super(name, fileName, file, contentType, charset);
}

public CustomFilePart(String name, String fileName, File file) throws FileNotFoundException {
super(name, fileName, file);
}

protected void sendDispositionHeader(OutputStream out) throws IOException {
super.sendDispositionHeader(out);
String filename = getSource().getFileName();
if (filename != null) {
out.write(EncodingUtil.getAsciiBytes(FILE_NAME));
out.write(QUOTE_BYTES);
//使用UTF-8编码
out.write(EncodingUtil.getBytes(filename, "UTF-8"));
out.write(QUOTE_BYTES);
}
}
}

package com.wxl.app;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.methods.multipart.FilePart;
import org.apache.commons.httpclient.methods.multipart.MultipartRequestEntity;
import org.apache.commons.httpclient.methods.multipart.Part;
import org.apache.commons.httpclient.methods.multipart.StringPart;
import org.apache.commons.httpclient.params.HttpMethodParams;

public class ClientMultipartFormPost {
public static void main(String[] args) throws FileNotFoundException {
StringPart name = new StringPart("name", "张三", "UTF-8");

//使用自定义的FilePart，防止文件名乱码。
FilePart file = new CustomFilePart("file", new File("c:/测试.txt"));

PostMethod filePost = new PostMethod("http://localhost:8080" + "/j2ee/simple");
filePost.getParams().setBooleanParameter(HttpMethodParams.USE_EXPECT_CONTINUE, true);

MultipartRequestEntity reqEntity = new MultipartRequestEntity(new Part[] { name, file }, filePost.getParams());
filePost.setRequestEntity(reqEntity);
HttpClient client = new HttpClient();
client.getHttpConnectionManager().getParams().setConnectionTimeout(5000);

try {
int statusCode = client.executeMethod(filePost);
System.out.println(HttpStatus.getStatusText(statusCode));
} catch (HttpException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
filePost.releaseConnection();
}

}
}

MultipartEntity reqEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE, null, Charset.forName("UTF-8"));

package com.wxl.app;

import java.io.File;
import java.nio.charset.Charset;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntity;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.entity.mime.content.StringBody;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;

/**
* Example how to use multipart/form encoded POST request.
*/
public class ClientMultipartFormPost {

public static void main(String[] args) throws Exception {
HttpClient httpclient = new DefaultHttpClient();
try {
HttpPost httppost = new HttpPost("http://localhost:8080" + "/j2ee/simple");

FileBody file = new FileBody(new File("c:/测试.txt"), "application/octet-stream", "UTF-8");
StringBody name = new StringBody("张三", Charset.forName("UTF-8"));

//以浏览器兼容模式运行，防止文件名乱码。
MultipartEntity reqEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE, null, Charset
.forName("UTF-8"));

reqEntity.addPart("file", file);
reqEntity.addPart("name", name);

httppost.setEntity(reqEntity);

System.out.println("executing request " + httppost.getRequestLine());
HttpResponse response = httpclient.execute(httppost);
HttpEntity resEntity = response.getEntity();

System.out.println("----------------------------------------");
System.out.println(response.getStatusLine());
if (resEntity != null) {
System.out.println("Response content length: " + resEntity.getContentLength());
}
EntityUtils.consume(resEntity);
} finally {
try {
httpclient.getConnectionManager().shutdown();
} catch (Exception ignore) {
}
}
}

}