相关疑难解决方法(0)

我试图使用RequestMethod.PUT和RequestMethod.DELETESpring MVC中控制器(3.0.2版).在Spring控制器类中有三个映射方法的方法如下(分别为PUT,GET和POST,仅用于演示目的).

@RequestMapping(method = {RequestMethod.PUT}, value = {"admin_side/Temp"}, headers = {"content-type=multipart/form-data"})
public String update(@ModelAttribute("tempBean") TempBean tempBean, BindingResult error, Map model, HttpServletRequest request, HttpServletResponse response) {
    if (ServletFileUpload.isMultipartContent(request)) {
        System.out.println("true");
    }

    System.out.println("Request method PUT");
    return "admin_side/Temp";
}

@RequestMapping(method = {RequestMethod.GET}, value = {"admin_side/Temp"})
public String showForm(@ModelAttribute("tempBean") TempBean tempBean, BindingResult error, Map model, HttpServletRequest request, HttpServletResponse response) {
    System.out.println("Request method GET");
    return "admin_side/Temp";
}

@RequestMapping(method = {RequestMethod.POST}, value = {"admin_side/Temp"})
public String onSubmit(@ModelAttribute("tempBean") TempBean tempBean, BindingResult error, Map …

是的,我们的客户想要上传多个文件.我们使用春天3 mvc.像这样的官方例子:

标记:

<form method="post" action="/form" enctype="multipart/form-data">
    <input type="text" name="name"/>
    <input type="file" name="file"/>
    <input type="submit"/>
</form>

码:

@RequestMapping(value = "/form", method = RequestMethod.POST)
public String handleFormUpload(@RequestParam("name") String name,
                               @RequestParam("file") MultipartFile file) {

    if (!file.isEmpty()) {
        byte[] bytes = file.getBytes();

        // store the bytes somewhere
        return "redirect:uploadSuccess";
    } else {
        return "redirect:uploadFailure";
    }
}

只有一个文件,所以我可以在方法中写入文件输入名称.但如果我想上传很多文件,我该怎么办？我无法写入所有文件输入名称,因为如果是由js代码生成的.我只知道它的名字就像'attach_'那样,我应该在方法中写什么？如果我这样写

@RequestParam() MultipartFile file

要么

@RequestParam("attach_") MultipartFile file

我会收到一个错误.