如何使用 Apache Commons 以多部分形式读取其他参数 [英] How can I read other parameters in a multipart form with Apache Commons

问题描述

我有一个文件上传表单，该表单被回发到 servlet(使用 multipart/form-data 编码).在 servlet 中，我尝试使用 Apache Commons 来处理上传.但是，我在表单中还有一些其他字段，它们只是普通字段.如何从请求中读取这些参数?

I have a file upload form that is being posted back to a servlet (using multipart/form-data encoding). In the servlet, I am trying to use Apache Commons to handle the upload. However, I also have some other fields in the form that are just plain fields. How can I read those parameters from the request?

例如，在我的 servlet 中，我有这样的代码要在上传的文件中读取:

For example, in my servlet, I have code like this to read in the uplaoded file:

    // Create a factory for disk-based file items
    FileItemFactory factory = new DiskFileItemFactory();
    // Create a new file upload handler
    ServletFileUpload upload = new ServletFileUpload(factory);
    // Parse the request
    Iterator /* FileItem */ items = upload.parseRequest(request).iterator();
    while (items.hasNext()) {
        FileItem thisItem = (FileItem) items.next();
        ... do stuff ...
    }

推荐答案

你可以试试这样的:

while (items.hasNext()) {
        FileItem thisItem = (FileItem) items.next();
        if (thisItem.isFormField()) {
            if (thisItem.getFieldName().equals("somefieldname") {
                String value = thisItem.getString();
                // Do something with the value
            }
        }

    }

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