Android 에서 Http 요청 인 스 턴 스 보 내기

Android 에서 Http 요청 인 스 턴 스(파일 업로드,servlet 수신 포함)http,post 를 보 냅 니 다.파일 을 올 리 는 이 게시 물 은 마지막 으로 xinke7hao 가 2010-6-12 13:43 편집 그저께 부터 핸드폰 에서 서버 로 파 라 메 터 를 전송 할 준 비 를 해 야 합 니 다.첨부 파일 도 전송 할 수 있 고 많은 글 과 자 료 를 찾 았 습 니 다.이제 공유:코드 중의 catch 같은 것 을 정리 하면 생략 합 니 다.그림,txt,xml 를 시도 해 보 았 습 니 다.여러분 벽돌 을 마음껏 찍 으 세 요.보 내 고 보 니 코드 부분의 형식 이...................................................................................

/** 
*   http          ，        ，       
* @param actionUrl      
* @param params      key    ,value     
* @param file      
*/ 
public static void postMultiParams(String actionUrl, Map<String, String> params, FormBean[] files) { 
try { 
PostMethod post = new PostMethod(actionUrl); 
List<art> formParams = new ArrayList<art>(); 
for(Map.Entry<String, String> entry : params.entrySet()){ 
formParams.add(new StringPart(entry.getKey(), entry.getValue())); 
} 

if(files!=null) 
for(FormBean file : files){ 
//filename                 ，filepath       (       )，filebean          
formParams.add(new FilePart("file", file.getFilename(), new File(file.getFilepath()))); 
} 

Part[] parts = new Part[formParams.size()]; 
Iterator<art> pit = formParams.iterator(); 
int i=0; 

while(pit.hasNext()){ 
parts[i++] = pit.next(); 
} 
//               
//StringPart sp = new StringPart("TEXT", "testValue", "GB2312");  
//FilePart fp = new FilePart("file", "test.txt", new File("./temp/test.txt"), null, "GB2312" 
//postMethod.getParams().setContentCharset("GB2312"); 

MultipartRequestEntity mrp = new MultipartRequestEntity(parts, post.getParams()); 
post.setRequestEntity(mrp); 

//execute post method 
HttpClient client = new HttpClient(); 
int code = client.executeMethod(post); 
System.out.println(code); 
} catch ... 
} 
 

             java     post  ，             
java    main  ： 
public static void main(String[] args){ 
String actionUrl = "http://192.168.0.123:8080/WSserver/androidUploadServlet"; 
Map<String, String> strParams = new HashMap<String, String>(); 
strParams.put("paramOne", "valueOne"); 
strParams.put("paramTwo", "valueTwo"); 
FormBean[] files = new FormBean[]{new FormBean("dest1.xml", "F:/testpostsrc/main.xml")}; 
HttpTool.postMultiParams(actionUrl,strParams,files); 
} 
 

        ，      android   ，        。 
                PostMethod ，org.apache.commons.httpclient.methods.PostMethod          ； 
       VerifyError。                  ，   SDK        ，          ～～ 
          http request     post   ，          ，           ，          java     post  ， servlet        ，                  ！    ： 
*********************************************************** 
/** 
*              ，             
* @param actionUrl 
* @param params 
* @param files 
* @return 
* @throws IOException 
*/ 
public static String post(String actionUrl, Map<String, String> params, 
Map<String, File> files) throws IOException { 

String BOUNDARY = java.util.UUID.randomUUID().toString(); 
String PREFIX = "--" , LINEND = "\r
"; 
String MULTIPART_FROM_DATA = "multipart/form-data"; 
String CHARSET = "UTF-8"; 

URL uri = new URL(actionUrl); 
HttpURLConnection conn = (HttpURLConnection) uri.openConnection(); 
conn.setReadTimeout(5 * 1000); //         
conn.setDoInput(true);//      
conn.setDoOutput(true);//      
conn.setUseCaches(false); //         
conn.setRequestMethod("POST"); 
conn.setRequestProperty("connection", "keep-alive"); 
conn.setRequestProperty("Charsert", "UTF-8"); 
conn.setRequestProperty("Content-Type", MULTIPART_FROM_DATA + ";boundary=" + BOUNDARY); 

//             
StringBuilder sb = new StringBuilder(); 
for (Map.Entry<String, String> entry : params.entrySet()) { 
sb.append(PREFIX); 
sb.append(BOUNDARY); 
sb.append(LINEND); 
sb.append("Content-Disposition: form-data; name=\"" + entry.getKey() + "\"" + LINEND); 
sb.append("Content-Type: text/plain; charset=" + CHARSET+LINEND); 
sb.append("Content-Transfer-Encoding: 8bit" + LINEND); 
sb.append(LINEND); 
sb.append(entry.getValue()); 
sb.append(LINEND); 
} 

DataOutputStream outStream = new DataOutputStream(conn.getOutputStream()); 
outStream.write(sb.toString().getBytes()); 
//        
if(files!=null) 
for (Map.Entry<String, File> file: files.entrySet()) { 
StringBuilder sb1 = new StringBuilder(); 
sb1.append(PREFIX); 
sb1.append(BOUNDARY); 
sb1.append(LINEND); 
sb1.append("Content-Disposition: form-data; name=\"file\"; filename=\""+file.getKey()+"\""+LINEND); 
sb1.append("Content-Type: application/octet-stream; charset="+CHARSET+LINEND); 
sb1.append(LINEND); 
outStream.write(sb1.toString().getBytes()); 

InputStream is = new FileInputStream(file.getValue()); 
byte[] buffer = new byte[1024]; 
int len = 0; 
while ((len = is.read(buffer)) != -1) { 
outStream.write(buffer, 0, len); 
} 

is.close(); 
outStream.write(LINEND.getBytes()); 
} 

//       
byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINEND).getBytes(); 
outStream.write(end_data); 
outStream.flush(); 
//       
int res = conn.getResponseCode(); 
if (res == 200) { 
InputStream in = conn.getInputStream(); 
int ch; 
StringBuilder sb2 = new StringBuilder(); 
while ((ch = in.read()) != -1) { 
sb2.append((char) ch); 
} 
} 
outStream.close(); 
conn.disconnect(); 
return in.toString(); 
} 
 

********************** 
button      ： 
********************** 
public void onClick(View v){ 
String actionUrl = getApplicationContext().getString(R.string.wtsb_req_upload); 
Map<String, String> params = new HashMap<String, String>(); 
params.put("strParamName", "strParamValue"); 
Map<String, File> files = new HashMap<String, File>(); 
files.put("tempAndroid.txt", new File("/sdcard/temp.txt")); 
try { 
HttpTool.postMultiParams(actionUrl, params, files); 
} catch ... 
 


*************************** 
    servlet  ： 
*************************** 
public void doPost(HttpServletRequest request, HttpServletResponse response) 
throws ServletException, IOException { 

//print request.getInputStream to check request content 
//HttpTool.printStreamContent(request.getInputStream()); 

RequestContext req = new ServletRequestContext(request); 
if(FileUpload.isMultipartContent(req)){ 
DiskFileItemFactory factory = new DiskFileItemFactory(); 
ServletFileUpload fileUpload = new ServletFileUpload(factory); 
fileUpload.setFileSizeMax(FILE_MAX_SIZE); 

List items = new ArrayList(); 
try { 
items = fileUpload.parseRequest(request); 
} catch ... 

Iterator it = items.iterator(); 
while(it.hasNext()){ 
FileItem fileItem = (FileItem)it.next(); 
if(fileItem.isFormField()){ 
System.out.println(fileItem.getFieldName()+" "+fileItem.getName()+" "+new String(fileItem.getString().getBytes("ISO-8859-1"),"GBK")); 
} else { 
System.out.println(fileItem.getFieldName()+" "+fileItem.getName()+" "+ 
fileItem.isInMemory()+" "+fileItem.getContentType()+" "+fileItem.getSize()); 
if(fileItem.getName()!=null && fileItem.getSize()!=0){ 
File fullFile = new File(fileItem.getName()); 
File newFile = new File(FILE_SAVE_PATH+fullFile.getName()); 
try { 
fileItem.write(newFile); 
} catch ... 
} else { 
System.out.println("no file choosen or empty file"); 
} 
} 
} 
} 
} 

public void init() throws ServletException { 
//   web.xml    init-param   
FILE_MAX_SIZE = Long.parseLong(this.getInitParameter("file_max_size"));//          
FILE_SAVE_PATH = this.getInitParameter("file_save_path");//       
}