java+express+multiparty上传文件到服务器测试

server：

app.get('/',function(req, res) {        res.send("<form method='post', action='/file/uploading', enctype='multipart/form-data'><input name='inputFile', type='file', multiple='mutiple'><input name='btnUp', type='submit',value='上传'></form>");});app.post('/file/uploading', function(req, res, next){   var form = new multiparty.Form({uploadDir: currPath+'public/'});   form.parse(req, function(err, fields, files) {     var filesTmp = JSON.stringify(files,null,2);      if(err){       console.log('parse error: ' + err);     } else {       console.log('parse files: ' + filesTmp);       var inputFile = files.inputFile[0];       var uploadedPath = inputFile.path;       var dstPath = currPath+'public/' + inputFile.originalFilename;       //重命名为真实文件名       fs.rename(uploadedPath, dstPath, function(err) {         if(err){           console.log('rename error: ' + err);         } else {           console.log('rename ok');         }       });     }      res.writeHead(200, {'content-type': 'text/plain;charset=utf-8'});     res.write('received upload:\n\n');     res.end(util.inspect({fields: fields, files: filesTmp}));  }); });

java：

public class UploadFileTest {     public void start() throws Exception {        String serverUrl = "http://xxxxxxxx:xxx/file/uploading";//上传地址        ArrayList<FormFieldKeyValuePair> ffkvp = new ArrayList<FormFieldKeyValuePair>();         ffkvp.add(new FormFieldKeyValuePair("type", "txt"));              ArrayList<UploadFileItem> ufi = new ArrayList<UploadFileItem>();        ufi.add(new UploadFileItem("inputFile", "D:\\123.txt"));        uploadLog hpe = new uploadLog();        String response = hpe.sendHttpPostRequest(serverUrl, ffkvp, ufi);        System.out.println("Responsefrom server is: " + response);            }}  class uploadLog {private static final String BOUNDARY = "----------HV2ymHFg03ehbqgZCaKO6jyH";  public String sendHttpPostRequest(String serverUrl,        ArrayList<FormFieldKeyValuePair> generalFormFields,        ArrayList<UploadFileItem> filesToBeUploaded) throws Exception {    URL url = new URL(serverUrl);    HttpURLConnection connection = (HttpURLConnection) url.openConnection();    // 发送POST请求必须设置如下两行    connection.setDoOutput(true);    connection.setDoInput(true);    connection.setUseCaches(false);    connection.setRequestMethod("POST");    connection.setRequestProperty("Connection", "Keep-Alive");    connection.setRequestProperty("Charset", "UTF-8");    connection.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);     StringBuffer contentBody = new StringBuffer("--" + BOUNDARY);    String endBoundary = "\r\n--" + BOUNDARY + "--\r\n";    OutputStream out = connection.getOutputStream();    for (FormFieldKeyValuePair ffkvp : generalFormFields)  {        contentBody.append("\r\n")        .append("Content-Disposition: form-data; name=\"")        .append(ffkvp.getKey() + "\"")        .append("\r\n")        .append("\r\n")        .append(ffkvp.getValue())        .append("\r\n")        .append("--")        .append(BOUNDARY);    }    String boundaryMessage1 = contentBody.toString();    out.write(boundaryMessage1.getBytes("utf-8"));    for (UploadFileItem ufi : filesToBeUploaded)  {        contentBody = new StringBuffer();        contentBody.append("\r\n")        .append("Content-Disposition:form-data; name=\"")        .append(ufi.getFormFieldName() + "\"; ") // form中field的名称                .append("filename=\"")                .append(ufi.getFileName() + "\"") // 上传文件的文件名，包括目录                .append("\r\n")                .append("Content-Type:text/plain")                .append("\r\n\r\n");        String boundaryMessage2 = contentBody.toString();        out.write(boundaryMessage2.getBytes("utf-8"));         File file = new File(ufi.getFileName());        DataInputStream dis = new DataInputStream(new FileInputStream(file));        int bytes = 0;        byte[] bufferOut = new byte[(int) file.length()];        bytes = dis.read(bufferOut);        out.write(bufferOut, 0, bytes);        dis.close();    }    out.write(endBoundary.getBytes("utf-8"));    out.flush();    out.close();      String strLine = "";    String strResponse = "";    InputStream in = connection.getInputStream();    BufferedReader reader = new BufferedReader(new InputStreamReader(in));    while ((strLine = reader.readLine()) != null)  {        strResponse += strLine + "\n";    }    return strResponse;  }   }class FormFieldKeyValuePair {    private static final long serialVersionUID = 1L;    //The form field used for receivinguser's input,    // such as "username" in "<input type="text" name="username"/>"    private String key;   //The value entered by user in thecorresponding form field,    // such as "Patrick" the abovementioned formfield "username"    private String value;    public FormFieldKeyValuePair(String key, String value)  {        this.key = key;        this.value = value;    }    public String getKey()  {        return key;    }    public void setKey(String key) {        this.key = key;    }    public String getValue()  {        return value;    }    public void setValue(String value)  {        this.value = value;    }  }  class UploadFileItem implements Serializable{    private static final long serialVersionUID = 1L;   //The form field name in a form used foruploading a file,    // such as "upload1" in "<input type="file" name="upload1"/>"   private String formFieldName;    //File name to be uploaded, thefileName contains path,    // such as "E:\\some_file.jpg"    private String fileName;    public UploadFileItem(String formFieldName, String fileName)  {        this.formFieldName = formFieldName;        this.fileName = fileName;    }    public String getFormFieldName()  {        return formFieldName;    }    public void setFormFieldName(String formFieldName)  {        this.formFieldName = formFieldName;    }    public String getFileName()  {        return fileName;    }    public void setFileName(String fileName)  {        this.fileName = fileName;    }  }