struts2配置commons-fileupload的问题

 

这个问题主要出现在上传文件时parseRequest()的值为空，原因是struts2的Filter拦截了。

 

ServletFileUpload sfu= new ServletFileUpload(factory);
List fileList= sfu.parseRequest(request);

 

解决办法一、

修改一下web.xml配置
 

<filter-mapping>
    <filter-name>struts2</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

<!--改为-->
<filter-mapping>
    <filter-name>struts2</filter-name>
    <url-pattern>/*.action</url-pattern>
</filter-mapping>

解决办法二、

 

一、在项目中添加commons-fileupload-1.x.x.jar、commons-io-1.x.x.jar两个包
   二、把页面中form表单的enctype属性设置为：”multipart/form-data”,并设置method属性值为：post。否则不会编译成功的。
   三、便是在action中编写以下代码：
 private File uploadFile; //得到上传的文件
 private String uploadFileContentType; //得到文件的类型
 private String uploadFileFileName; //得到上传文件名称
 public File getUploadFile() {
 return uploadFile;
 }
 public void setUploadFile(File uploadFile) {
 System.out.println("文件"+uploadFile);
 this.uploadFile = uploadFile;
 }
 public String getUploadFileContentType() {
 return uploadFileContentType;
 }
 public void setUploadFileContentType(String uploadFileContentType) {
 this.uploadFileContentType = uploadFileContentType;
 }
 public String getUploadFileFileName() {
 return uploadFileFileName;
 }
 public void setUploadFileFileName(String uploadFileFileName) {
 this.uploadFileFileName = uploadFileFileName;
 }

/**
 * @return
 */
 public String uploadFile() throws Exception {
 String realpath=ServletActionContext.getServletContext().getRealPath("/images");
 System.out.println("上传文件名称："+uploadFileFileName);
 //自定义上传文件名称
uploadFileFileName="测试哈"+uploadFileFileName.substring(uploadFileFileName.lastIndexOf("."));
 System.out.println("上传文件类型："+uploadFileContentType);
 System.out.println("要上传的路径："+realpath);
 File file=new File(realpath);

 if(!file.exists())file.mkdirs();
 FileUtils.copyFile(uploadFile, new File(file,uploadFileFileName));
 return "sc";
 }