第一步：编写相关相关文件上传Action
public class UploadFileAction extends ActionSupport {
/**
*
*/
private static final long serialVersionUID = 1L;
// 相关属性封装
private File upload; // 上传文件
private String uploadContentType;// 上传文件类型
private String uploadFileName;// 上传文件名
private String filename;// 上传文件重新命名
private String upladPath;// 上传文件路径
private String result;// 上传结果
public File getUpload() {
return upload;
}
public void setUpload(File upload) {
this.upload = upload;
}
public String getUploadContentType() {
return uploadContentType;
}
public void setUploadContentType(String uploadContentType) {
this.uploadContentType = uploadContentType;
}
public String getUploadFileName() {
return uploadFileName;
}
public void setUploadFileName(String uploadFileName) {
this.uploadFileName = uploadFileName;
}
public String getFilename() {
return filename;
}
public void setFilename(String filename) {
this.filename = filename;
}
public String getUpladPath() {
return upladPath;
}
public void setUpladPath(String upladPath) {
this.upladPath = upladPath;
}
@Override
public String execute() throws Exception {
// TODO Auto-generated method stub
String file = "";
// 如果新文件名未输入，则使用上传文件的文件名，做为服务器保存文件的文件名
if (filename.equals("")) {
file = upladPath + uploadFileName;
} else {
file = upladPath + uploadFileName;
}
// 判读服务器是否存在同名的文件，否则相关的信息提示
if (new File(file).exists()) {
result = "该文件已经存在，请为文件重新命名";
} else {
FileOutputStream fileoutput = new FileOutputStream(file);
InputStream input = new FileInputStream(upload);
byte[] buffer = new byte[8192];
int count = 0;
while ((count = input.read(buffer)) > 0) {
fileoutput.write(buffer, 0, count);
}
fileoutput.close();
input.close();
result = "文件上传成功";
}
return "result";
}
public void setResult(String result) {
this.result = result;
}
public String getResult() {
return result;
}
}
第二步：struts2.xml文件配置
<!--struts2文件上传 -->
<package name="fileupload" extends="struts-default">
<action name="fileupload" class="com.rf.action.UploadFileAction">
<!--struts2 服务器保存上传文件 -->
<param name="upladPath">c:\upload\</param>
<result name="result">/error.jsp</result>
</action>
</package>
第三步：jsp页面相关代码（文件上传页面）
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>struts2文件上传实例代码</title>
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<!--struts2文件上传 -->
<s:form action="fileupload" enctype="multipart/form-data">
<s:file label="文件上传" name="upload"/>
<s:textfield label="新文件名" name="filename"/>
<s:submit value="上传"/>
</s:form>
</body>
</html>
结果页面
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>上传文件结果</title>
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
文件上传结果：
<s:property value="result"/><br>
</body>
</html>
结果展示：
