web.xml文件配置:
<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <display-name></display-name> <display-name>Struts Blank</display-name> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
jsp页面代码:
<script type="text/javascript">
$(function() {
$("#button").bind("click",function() {
var html = $("<input type='file' name='file'>");
var button = $("<input type='button' name='button' value='删除'><br>");
$("#fileDiv").append(html).append(button);
button.click(function()
{
html.remove();
button.remove();
});
});
});
</script>
</head>
<body>
<form action="myTestUploadMulti" method="post" enctype="multipart/form-data">
username:<input type="text" name="username" /><br/>
<div id="fileDiv">file:<input type="file" name="file"/></div><input type="button" value="添加" id="button"><br/>
<input type="submit" value="submit">
</form>
DiagTools.exe<a href="fileDownLoad">下载</a>
</body>
struts.xml文件配置:
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <package name="default" namespace="/" extends="struts-default"> <action name="myTestUploadMulti" class="cn.bdx.action.UploadAction"> <result name="success">/main/index.jsp</result> </action> </package> </struts>
最后就是action类的代码:
package cn.bdx.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 username;
private List<File> file;
private List<String> fileFileName;
private List<String> fileContentType;
@Override
public String execute() throws Exception {
System.out.println(ServletActionContext.getServletContext());
String root = ServletActionContext.getServletContext().getRealPath("/upload");
System.out.println(root);
for (int i=0;i<file.size();i++) {
InputStream is = new FileInputStream(file.get(i));
OutputStream os = new FileOutputStream(new File(root,fileFileName.get(i)));
System.out.println("fileName = " + fileFileName);
System.out.println("file=" +file.get(i).getName());
System.out.println("filePath = " + file.get(i).getPath());
byte[] buffer = new byte[1024];
int length = 0;
while(-1!=(length = is.read(buffer, 0, buffer.length))) {
os.write(buffer);
}
os.close();
is.close();
}
return SUCCESS;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public List<File> getFile() {
return file;
}
public void setFile(List<File> file) {
this.file = file;
}
public List<String> getFileFileName() {
return fileFileName;
}
public void setFileFileName(List<String> fileFileName) {
this.fileFileName = fileFileName;
}
public List<String> getFileContentType() {
return fileContentType;
}
public void setFileContentType(List<String> fileContentType) {
this.fileContentType = fileContentType;
}
}