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httpclient通過POST來上傳文件，而不是通過流的形式，並在服務端進行解析(通過httpmime.jar來操作)
1. 首先需要對應的JAR包 導入 httpmime-4.1.1.jar。
package url;
import io.IoStreamUtil;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
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;
/**
* httpclient上傳文件
* @author linwei
*
*/
public class MultipartEntityUtil {
public static String postFile(File file,String url) throws ClientProtocolException, IOException {
FileBody bin = null;
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(url);
if(file != null) {
bin = new FileBody(file);
}
StringBody username = new StringBody("13696900475");
StringBody password = new StringBody("13696900475");
//請記住，這邊傳遞漢字會出現亂碼，解決方法如下,設置好編碼格式就好
//new StringBody("漢字",Charset.forName("UTF-8")));
MultipartEntity reqEntity = new MultipartEntity();
reqEntity.addPart("username", username);
reqEntity.addPart("password", password);
reqEntity.addPart("data", bin);
httppost.setEntity(reqEntity);
System.out.println("執行: " + httppost.getRequestLine());
HttpResponse response = httpclient.execute(httppost);
System.out.println("statusCode is " + response.getStatusLine().getStatusCode());
HttpEntity resEntity = response.getEntity();
System.out.println("----------------------------------------");
System.out.println(response.getStatusLine());
if (resEntity != null) {
System.out.println("返回長度: " + resEntity.getContentLength());
System.out.println("返回類型: " + resEntity.getContentType());
InputStream in = resEntity.getContent();
System.out.println("in is " + in);
System.out.println(IoStreamUtil.getStringFromInputStream(in));
}
if (resEntity != null) {
resEntity.consumeContent();
}
return null;
}
public static void main(String[] args) throws ClientProtocolException, IOException {
File file = new File("d:/rss.xml");
String url = "https://localhost:8080/webtest/servlet/URLTest";
postFile(file,url);
}
}
2. 服務端的接收解析代碼(同樣的，服務端也需要導入上麵提到的JAR包) (特別注釋：在servlet中直接獲取的request是可以正常解析的，但是，在ACTION中獲取的request則是通過ACTION內部的類進行了封裝，因此，在ACTION中執行以下代碼，upload.parseRequest(request)方法執行返回的是空的，暫沒找到解決辦法。)
//commons-fileupload.jar commons-io
request.setCharacterEncoding("UTF-8");
boolean isMultipart = ServletFileUpload.isMultipartContent(request);
FileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
try {
List items = upload.parseRequest(request);
Iterator iter = items.iterator();
while (iter.hasNext()) {
FileItem item = (FileItem) iter.next();
if (item.isFormField()) {
//普通文本信息處理
String paramName = item.getFieldName();
String paramValue = item.getString();
System.out.println(paramName + ":" + paramValue);
} else {
//上傳文件信息處理
String fileName = item.getName();
byte[] data = item.get();
String filePath = "d:/ssssss.txt";
FileOutputStream fos = new FileOutputStream(filePath);
fos.write(data);
fos.close();
}
}
} catch (FileUploadException e) {
e.printStackTrace();
}
}
最後更新：2017-04-03 20:19:50