struts2批量文件上传
xml文件的配置
<package name="/file" namespace="/file" extends="struts-default" >
<action name="upload" class="org.web.action.UploadAction" method="Upload">
<param name="savePath">/images</param>
<result name="success">/public.jsp</result>
<result name="input">/file.jsp</result>
<interceptor-ref name="fileUpload">
<!-- 文件过滤 -->
<param name="allowedTypes">image/bmp,image/png,image/gif,image/jpeg</param>
<!-- 文件大小, 以字节为单位 -->
<param name="maximumSize">1025956</param>
</interceptor-ref>
<!-- 默认拦截器必须放在fileUpload之后，否则无效 -->
<interceptor-ref name="defaultStack" />
</action>
</package>
处理文件上传操作的action代码：
package org.web.action;
import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.InputStream; import java.io.OutputStream; import java.util.List;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class UploadAction extends ActionSupport { private String savePath; private List<File> file;
private List<String> fileFileName;
private List<String> fileContentType;
public String getSavePath() { return ServletActionContext.getServletContext().getRealPath(savePath); }
public void setSavePath(String savePath) { this.savePath = savePath; }
public List<File> getFile() { return file; }
public void setFile(List<File> file) { this.file = file; }
public List<String> getFileContentType() { return fileContentType; }
public void setFileContentType(List<String> fileContentType) { this.fileContentType = fileContentType; }
public List<String> getFileFileName() { return fileFileName; }
public void setFileFileName(List<String> fileFileName) { this.fileFileName = fileFileName; }
/** * 动态上传文件 * @return * @throws Exception */
public String Upload() throws Exception {
for(int i=0;i<file.size();i++){
FileOutputStream fos = null;
FileInputStream fis = null;
try { // 建立文件输出流
System.out.println("savePath===>"+getSavePath());
fos = new FileOutputStream(getSavePath() + "\\" + getFileFileName().get(i));
System.out.println("filename====>"+getFileFileName().get(i));
// 建立文件上传流
fis = new FileInputStream(getFile().get(i));
byte[] buffer = new byte[1024];
int len = 0;
while ((len = fis.read(buffer)) > 0) {
fos.write(buffer, 0, len); }
} catch (Exception e) {
System.out.println("文件上传失败");
e.printStackTrace();
} finally { } }
return SUCCESS;
}
}
上传的前台界面：
<%@ page language="java" import="java.util.*" pageEncoding="gbk"%> <%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>My JSP 'upload.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"> --> <script type="text/javascript"> function addMore(){ var td=document.getElementById("more");
var br=document.createElement("br"); var input=document.createElement("input"); var button=document.createElement("input");
input.type="file"; input.name="file";
button.type="button"; button.value="-";
button.onclick=function(){ td.removeChild(br); td.removeChild(input); td.removeChild(button); } td.appendChild(br); td.appendChild(input); td.appendChild(button); } </script>
</head> <body> <form action="${pageContext.request.contextPath}/file/upload.action" enctype="multipart/form-data" method="post"> <table align="center" width="60%" border="1"> <tr> <td> 选择上传的文件: </td> <td id="more"> <input type="file" name="file"> <input type="button" value="+" onclick="addMore()"/> </td> </tr> <tr> <td> </td> <td> <s:submit value="上传" align="center"></s:submit> </td> </tr> </table> </form> </body> </html>
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