JSP页面/Apache FileUpload组件上传文件的与此同时，传递其他参数的方法

JSP页面/Apache FileUpload组件上传文件的同时，传递其他参数的方法

Spring3.0+Apache Tomcatv7.0+JDK1.7.0_u45+J2EE1.4验证通过。

需求：使用JSP页面上传文件时，同时需要传递相关参数。

1、需要将form设置为enctype="multipart/form-data"method="post"参数；

2、由于此时URL参数不能通过request.getParameter()获得，所以为了让@RequestMapping中设置的params="command=upload"条件生效，需要将参数直接加到表单的action中action="item.do?command=upload"；

3、在控制器处理时，使用item.isFormField(),item.getFieldName();item.getString()等方法去获取表单域属性名和参数；

JAVA类

import org.apache.commons.fileupload.DiskFileUpload;

import org.apache.commons.fileupload.FileItem;

@RequestMapping(value = "item", params = "command=upload", method = RequestMethod.POST)

public String upload(ItemActionForm form, HttpServletRequest request,

HttpServletResponse response) throws Exception {

String fullFileName = null;

//Get real absolute path

String realPath = request.getSession().getServletContext()

.getRealPath("/images");

System.out.println("realPath=" + realPath);

DiskFileUpload disk = new DiskFileUpload();

try {

List<FileItem> files = (List<FileItem>) disk.parseRequest(request);

for (FileItem item : files) {

// Parse the parameter

if (item.isFormField()) {

System.out.println("item.isFormField()");

String field = item.getFieldName();

if (field != null) {

if (field.equalsIgnoreCase("itemNo")) {

itemNo = item.getString();

System.out.println("itemNo=" + itemNo);

}

// parse the file data

fullFileName = item.getName();

if (fullFileName == null) {

System.out.println("fullFileName not existed.");

continue;

}

//Retrive the filename from full pathname.

String fileName1 = fullFileName.substring(fullFileName

.lastIndexOf("\\") + 1);

File file1 = new File(realPath, fileName1);

file1.getParentFile().mkdirs();

file1.createNewFile();

InputStream ins = item.getInputStream();

OutputStream ous = new FileOutputStream(file1);

try {

byte[] buffer = new byte[1024];

int len = 0;

while ((len = ins.read(buffer)) > -1)

ous.write(buffer, 0, len);

} finally {

ous.close();

ins.close();

}

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

return "redirect:item.do";

}

JSP页面：

<input name="itemFile" type="file" class="text1" size="40" maxlength="40">(必须是.gif或.jpg文件)

JSP页面/Apache FileUpload组件上传文件的与此同时，传递其他参数的方法

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