在之前一段的项目中,使用Java模仿Http Post方式发送参数以及文件,单纯的传递参数或者文件可以使用URLConnection进行相应的处理。
但是项目中涉及到既要传递普通参数,也要传递多个文件(不是单纯的传递XML文件)。在网上寻找之后,发现是使用HttClient来进行响应的操作,起初尝试多次依然不能传递参数和传递文件,后来发现时因为当使用HttpClient时,不能使用request.getParameter()对普通参数进行获取,而要在服务器端使用Upload来进行操作。
HttpClient4.2 jar下载 :http://download.csdn.net/detail/just_szl/4370574
客户端代码:
- import java.io.ByteArrayOutputStream;
- 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.HttpStatus;
- import org.apache.http.ParseException;
- 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.impl.client.DefaultHttpClient;
- import org.apache.http.util.EntityUtils;
-
- public class HttpPostArgumentTest2 {
-
-
- public void SubmitPost(String url,String filename1,String filename2, String filepath){
-
- HttpClient httpclient = new DefaultHttpClient();
-
- try {
-
- HttpPost httppost = new HttpPost(url);
-
- FileBody bin = new FileBody(new File(filepath + File.separator + filename1));
-
- FileBody bin2 = new FileBody(new File(filepath + File.separator + filename2));
-
- StringBody comment = new StringBody(filename1);
-
- MultipartEntity reqEntity = new MultipartEntity();
-
- reqEntity.addPart("file1", bin);
- reqEntity.addPart("file2", bin2);
- reqEntity.addPart("filename1", comment);
- httppost.setEntity(reqEntity);
-
- HttpResponse response = httpclient.execute(httppost);
-
-
- int statusCode = response.getStatusLine().getStatusCode();
-
-
- if(statusCode == HttpStatus.SC_OK){
-
- System.out.println("服务器正常响应.....");
-
- HttpEntity resEntity = response.getEntity();
-
-
- System.out.println(EntityUtils.toString(resEntity));
-
-
-
- System.out.println(resEntity.getContent());
-
- EntityUtils.consume(resEntity);
- }
-
- } catch (ParseException e) {
-
- e.printStackTrace();
- } catch (IOException e) {
-
- e.printStackTrace();
- } finally {
- try {
- httpclient.getConnectionManager().shutdown();
- } catch (Exception ignore) {
-
- }
- }
- }
-
-
-
- public static void main(String[] args) {
-
-
- HttpPostArgumentTest2 httpPostArgumentTest2 = new HttpPostArgumentTest2();
-
- httpPostArgumentTest2.SubmitPost("http://127.0.0.1:8080/demo/receiveData.do",
- "test.xml","test.zip","D://test");
- }
-
- }
服务端代码:
- public void receiveData(HttpServletRequest request, HttpServletResponse response) throws AppException{
-
- PrintWriter out = null;
- response.setContentType("text/html;charset=UTF-8");
-
- Map map = new HashMap();
- FileItemFactory factory = new DiskFileItemFactory();
- ServletFileUpload upload = new ServletFileUpload(factory);
- File directory = null;
- List<FileItem> items = new ArrayList();
- try {
- items = upload.parseRequest(request);
-
- Iterator<FileItem> it = items.iterator();
- while (it.hasNext()) {
- FileItem fItem = (FileItem) it.next();
- String fName = "";
- Object fValue = null;
- if (fItem.isFormField()) {
- fName = fItem.getFieldName();
- fValue = fItem.getString("UTF-8");
- map.put(fName, fValue);
- } else {
- fName = fItem.getFieldName();
- fValue = fItem.getInputStream();
- map.put(fName, fValue);
- String name = fItem.getName();
- if(name != null && !("".equals(name))) {
- name = name.substring(name.lastIndexOf(File.separator) + 1);
-
- String timestamp_Str = TimeUtils.getCurrYearYYYY();
- directory = new File("d://test");
- directory.mkdirs();
-
- String filePath = ("d://test")+ timestamp_Str+ File.separator + name;
- map.put(fName + "FilePath", filePath);
-
- InputStream is = fItem.getInputStream();
- FileOutputStream fos = new FileOutputStream(filePath);
- byte[] buffer = new byte[1024];
- while (is.read(buffer) > 0) {
- fos.write(buffer, 0, buffer.length);
- }
- fos.flush();
- fos.close();
- map.put(fName + "FileName", name);
- }
- }
- }
- } catch (Exception e) {
- System.out.println("读取http请求属性值出错!");
- logger.error("读取http请求属性值出错");
- }
-
-
-
-
-
-
- try {
- out = response.getWriter();
- out.print("{success:true, msg:‘接收成功‘}");
- out.close();
- } catch (IOException e) {
- e.printStackTrace();
- }
-
-
- }
http://blog.csdn.net/Just_szl/article/details/7659347
HttpClient通过Post上传文件(转)
原文:http://www.cnblogs.com/flying607/p/5748385.html