代码可实现文本域及非文本域的处理
请求代码：
/**
* 上传
*
* @param urlStr
* @param textMap
* @param fileMap
* @return
*/
public static String formUpload(String urlStr, Map<String, String> textMap,
Map<String, String> fileMap) {
String res = "";
HttpURLConnection conn = null;
String BOUNDARY = "---------------------------123821742118716"; //boundary就是request头和上传文件内容的分隔符
try {
URL url = new URL(urlStr);
conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(5000);
conn.setReadTimeout(30000);
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setUseCaches(false);
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn
.setRequestProperty("User-Agent",
"Mozilla/5.0 (Windows; U; Windows NT 6.1; zh-CN; rv:1.9.2.6)");
conn.setRequestProperty("Content-Type",
"multipart/form-data; boundary=" + BOUNDARY);
OutputStream out = new DataOutputStream(conn.getOutputStream());
// text
if (textMap != null) {
StringBuffer strBuf = new StringBuffer();
Iterator iter = textMap.entrySet().iterator();
while (iter.hasNext()) {
Map.Entry entry = (Map.Entry) iter.next();
String inputName = (String) entry.getKey();
String inputValue = (String) entry.getValue();
if (inputValue == null) {
continue;
}
strBuf.append("\r\n").append("--").append(BOUNDARY).append(
"\r\n");
strBuf.append("Content-Disposition: form-data; name=\""
+ inputName + "\"\r\n\r\n");
strBuf.append(inputValue);
}
out.write(strBuf.toString().getBytes());
}
// file
if (fileMap != null) {
Iterator iter = fileMap.entrySet().iterator();
while (iter.hasNext()) {
Map.Entry entry = (Map.Entry) iter.next();
String inputName = (String) entry.getKey();
String inputValue = (String) entry.getValue();
if (inputValue == null) {
continue;
}
File file = new File(inputValue);
String filename = file.getName();
String contentType = new MimetypesFileTypeMap()
.getContentType(file);
if (filename.endsWith(".png")) {
contentType = "image/png";
}
if (contentType == null || contentType.equals("")) {
contentType = "application/octet-stream";
}
StringBuffer strBuf = new StringBuffer();
strBuf.append("\r\n").append("--").append(BOUNDARY).append(
"\r\n");
strBuf.append("Content-Disposition: form-data; name=\""
+ inputName + "\"; filename=\"" + filename
+ "\"\r\n");
strBuf.append("Content-Type:" + contentType + "\r\n\r\n");
out.write(strBuf.toString().getBytes());
DataInputStream in = new DataInputStream(
new FileInputStream(file));
int bytes = 0;
byte[] bufferOut = new byte[1024];
while ((bytes = in.read(bufferOut)) != -1) {
out.write(bufferOut, 0, bytes);
}
in.close();
}
}
byte[] endData = ("\r\n--" + BOUNDARY + "--\r\n").getBytes();
out.write(endData);
out.flush();
out.close();
// 读取返回数据
StringBuffer strBuf = new StringBuffer();
BufferedReader reader = new BufferedReader(new InputStreamReader(
conn.getInputStream()));
String line = null;
while ((line = reader.readLine()) != null) {
strBuf.append(line).append("\n");
}
res = strBuf.toString();
reader.close();
reader = null;
} catch (Exception e) {
System.out.println("发送POST请求出错。" + urlStr);
e.printStackTrace();
} finally {
if (conn != null) {
conn.disconnect();
conn = null;
}
}
return res;
}
处理上传请求代码：
/**
* 上传
* @param request
* @param response
* @throws Exception
*/
public void doUpload(HttpServletRequest request, HttpServletResponse response)throws Exception {
String jsession = request.getParameter("jsessionid");
System.out.println(jsession);
HttpSession s = request.getSession();
System.out.println(s.getId());
DiskFileItemFactory factory = new DiskFileItemFactory();
// 设置内存缓冲区，超过后写入临时文件
factory.setSizeThreshold(10240000);
ServletFileUpload upload = new ServletFileUpload(factory);
// 设置单个文件的最大上传值
upload.setFileSizeMax(10002400000l);
// 设置整个request的最大值
upload.setSizeMax(10002400000l);
upload.setHeaderEncoding("UTF-8");
//Date now = new Date();
Map map = new HashMap();
File tmpFile = new File(tmpFilePath);
if(!tmpFile.exists())
tmpFile.mkdirs();
List items = null;
try {
items = upload.parseRequest(request);
} catch (FileUploadException e) {
throw new RuntimeException(e);
}
if (items == null)
return ;
Date date = new Date();
Iterator iter = items.iterator();
String fileName = tmpFilePath + File.separator +date.getTime();
while (iter.hasNext()) {// 循环获得每个表单项
FileItem item = (FileItem) iter.next();
if (item.isFormField()) {
String name = item.getFieldName();
try {
String value = item.getString("utf-8");// 如果参数里面有中文，防止出现乱码
map.put(name, value);
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}else if(item.getName().length() > 0) {
String namefix = item.getName();
namefix = namefix.substring(namefix.lastIndexOf("."));
fileName = fileName +namefix;
item.write(new File(fileName));
}
}
String type =(String) map.get("type");
if(type.equals("war")){
request.getSession().setAttribute("warFileName",fileName);
}else if(type.equals("sql")){
request.getSession().setAttribute("sqlFileName",fileName);
}
try {
map.put("data", fileName);
response.getWriter().write(JsonUtils.convertToString(map));
} catch (IOException e) {
e.printStackTrace();
}
}
测试调用代码：
/**
* @param args
*/
public static void main(String[] args) {
String filepath="D:\\test\\PPGhost.war";
String urlStr = "http://localhost:8080/iopm/version/add.do?method=upload";
Map<String, String> textMap = new HashMap<String, String>();
textMap.put("name", "testname");
textMap.put("type", "war");
Map<String, String> fileMap = new HashMap<String, String>();
fileMap.put("userfile", filepath);
String ret = formUpload(urlStr, textMap, fileMap);
System.out.println(ret);
}
时间： 2024-08-01 01:37:12