ork2.ActionSupport;
public class UploadAction extends ActionSupport {
/**
*
*/
private static final long serialVersionUID = 1L;
private String[] titles;
private File[] upload;
private String[] uploadContentType;
private String[] uploadFileName;
private String savePath;
private String allowTypes;
public String upload() throws Exception {
if (upload.length <= 0) {
return null;
}
for (int i = 0; i < upload.length; i++) {
FileInputStream fis = new FileInputStream(getUpload()[i]);
System.out.println(getUploadFileName());
FileOutputStream fos = new FileOutputStream(getSavePath() + "\\"
+ getUploadFileName()[i]);
byte[] buffer = new byte[1024];
int len = 0;
while ((len = fis.read(buffer)) > 0) {
fos.write(buffer, 0, len);
}
fos.close();
fis.close();
}
return SUCCESS;
}
public boolean check(String type){
String[] types=allowTypes.split(",");
for (String s: types) {
if(s.equals(type)){
return true;
}
}
return false;
}
public void validate(){
for (String Type : uploadContentType) {
boolean b=check(Type);
if(!b){
// 添加FieldError
addFieldError("upload", "您要上传的文件类型不正确！"); }
}
}
public String[] getTitles() {
return titles;
}
public void setTitles(String[] titles) {
this.titles = titles;
}
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 getSavePath() {
return ServletActionContext.getServletContext().getRealPath(savePath);
}
public void setSavePath(String savePath) {
this.savePath = savePath;
}
// 设计校验类型的 注入
public void setAllowTypes(String allowTypes) {
this.allowTypes = allowTypes;
}
}
struts.xml
/uploadFiles
image/png,image/gif,image/jpg,image/jpeg
/succ.jsp
/index.jsp
index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>
My JSP 'index.jsp' starting page
下载
struts的下载方式
struts2 的文件下载
java 代码
package action;
import java.io.InputStream;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class DownAction extends ActionSupport {
//该属性可以在配置文件中动态指定该属性值
private String inputPath;
//依赖注入该属性值的setter方法
public void setInputPath(String value)
{
inputPath = value;
}
/*
定义一个返回InputStream的方法，
该方法将作为被下载文件的入口，
且需要配置stream类型结果时指定inputName参数，
inputName参数的值就是方法去掉get前缀、首字母小写的字符串
*/
public InputStream getTargetFile() throws Exception
{
//ServletContext提供getResourceAsStream()方法
//返回指定文件对应的输入流
return ServletActionContext.getServletContext()
.getResourceAsStream(inputPath);
}
}
struts.xml
配置一个action
\uploadFiles\扑克.png
image/png
targetFile
4096
filename="1110.jpg"
/index.jsp
下载页面
简单的超链接下载
111
222
简单的超链接下载
只需要基本的一个访问链接即可