在利用struts2完成上传文件到服务器时，遇到获取不到文件名
原因是在Action中的属性名没有和jsp中的属性名匹配
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP ‘main.jsp‘ starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<h1>上传文件</h1>
<form action="upload" method="post" enctype="multipart/form-data">
请选择文件:<input type="file" name="file"/>
<input type="submit" value="提交"/>
</form>
</body>
</html>
Action:
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class Upload extends ActionSupport{
private File file;
private String fileContentType;
private String fileFileName;
public File getFile() {
return file;
}
public void setFile(File file) {
this.file = file;
}
public String getFileContentType() {
return fileContentType;
}
public void setFileContentType(String fileContentType) {
this.fileContentType = fileContentType;
}
public String getFileFileName() {
return fileFileName;
}
public void setFileFileName(String fileFileName) {
this.fileFileName = fileFileName;
}
public String upload(){
System.out.println(this.fileContentType);
System.out.println(this.fileFileName);
InputStream is=null;
try {
is=new FileInputStream(file);
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
String path=ServletActionContext.getServletContext().getRealPath("/");
System.out.println(path);
File toFile=new File(path, this.getFileFileName());
OutputStream os=null;
try {
os=new FileOutputStream(toFile);
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
byte[] buffer=new byte[1024];
int length=0;
try {
while((length=is.read())>0){
os.write(buffer, 0, length);
}
is.close();
os.close();
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
return SUCCESS;
}
}
Action中该这样配置
private File file;
private String fileContentType;
private
String fileFileName;
ContentType和FileName是固定的，前缀为<input>中的name的值
时间： 2024-10-02 10:41:12