多数据类型表格中的数据

我有html页面,其中包含3个文件输入和3个文本输入。 如果我在jsp页面中使用enctype = multipart / form-data,我无法获得测试输入表单字段。 这些值始终显示为空。 如果我从jsp的帖子表单中删除enctype,我可以获得文本字段的输入,但在这种情况下,我无法上传文件。 所以我的问题是有可能有多个输入字段与文件输入,如果是如何获得文本输入字段名称?

任何帮助,这是赞赏..

以下是html代码

<html>
<body>
<form method="post" action="upload.jsp" enctype="multipart/form-data">
  Office Name: <input type="text" name="officeName" />  <br>
  Doc. Description : <input type="text" name="docDesc" />   <br>
  Document 1 :  <input type="file" name="doc1" />   <br>
  Document 2 :  <input type="file" name="doc2" />   <br>
  Document 3 :  <input type="file" name="doc3" />   <br>
  Remarks : <input type="text" name="remarks" />    <br>

  <br>
    <input type="submit" value="submit" />
</form>

我正在检索文本和文件输入

strOffficeName=Request.getParameter("officeName");
strDocDescription=Request.getParameter("docDesc");
strDoc1Path=Request.getParameter("doc1");
strDoc2Path=Request.getParameter("doc2");
strDoc3Path=Request.getParameter("doc3");
strRemarks=Request.getParameter("remarks");

我会看看Apache Commons FileUpload。 它有一个用户指南,说明如何从您的请求中获取文件上传。

“处理上传的项目”部分显示了如何处理文件上传和文本输入的示例。


创建一个名为fileUploader的类,它返回ServletFileUpload对象

private FileUploader()
{

}

public static synchronized ServletFileUpload getservletFileUploader(String tempDir, int maxSizeInMB) 
{
    if(uploader == null)
    {
        DiskFileItemFactory factory = new DiskFileItemFactory();

        factory.setSizeThreshold(1024 * 1024);
        factory.setRepository(new File(tempDir));

        uploader = new ServletFileUpload(factory);

        uploader.setFileSizeMax(maxSizeInMB * 1024 * 1024);
    }

    return uploader;
}

现在您可以处理请求并读取所有数据。 它处理上传的文件以及其他表单数据。

protected MultiPartFormData handleMultiPartRequest(HttpServletRequest request)
throws FileSizeLimitExceededException
{
    if(!isMultipartRequest(request))
        return null;

    ServletFileUpload upload = FileUploader.getservletFileUploader(tempDir, 50);
    MultiPartFormData data = new MultiPartFormData();
    try
    {
        List<FileItem> items = upload.parseRequest(request);

        for (FileItem item : items) 
        {
            if(item.isFormField())
            {
                data.getParameters().put(item.getFieldName(), item.getString());
            }
            else
            {
                String filename = item.getName();

                //Internet explorer and firefox will send the file name differently
                //Internet explorer will send the entire path to the file name including 
                //the backslash characters etc ... we should strip it down
                //THIS IS HACKY
                if(filename.indexOf("") != -1)
                {
                    int index = filename.lastIndexOf("");
                    filename = filename.substring(index + 1);
                }


                if(filename == null || filename.equals(""))
                {
                    //do nothing 
                }
                else
                {
                    File uploadFile = new File(uploadDir + File.separator + randomFileName);
                    item.write(uploadFile);

                                            data.addFile(item.getFieldname(), item.getString());
                }
            }
        }
    }
    catch(FileSizeLimitExceededException e)
    {
        throw e;
    }
    catch(Exception e)
    {
        e.printStackTrace();

    }


    return data;
}

解析请求后,我将它存储在一个名为MultipartFormData的对象中,该对象可用于获取请求参数

public class MultiPartFormData {

private Hashtable<String, String> parameters;
    private Hashtable<String, String> uploadedFiles;

public MultiPartFormData()
{
    this.parameters = new Hashtable<String, String>();
    this.uploadedFiles = new Hashtable<String, String>();
}

public Hashtable<String, String> getParameters() {
    return parameters;
}
public void setParameters(Hashtable<String, String> parameters) {
    this.parameters = parameters;
}
    public void getParameter(String paramName) {
          if(this.parameters.contains(paramName))
                 return tyhis.parameters.get(paramName);
          return null;
    }
    public void addFile(String key, String filename) {
        uploadedFile.put(key, filename);
    }
    public void getFilename(String key) {
        uploadedFile.get(key);
    }
}
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