Struts2实现特定文件下载

对WebContent中download目录下的city.xml文件进行下载

<%@ page language="java" contentType="text/html; charset=UTF-8"  
    pageEncoding="UTF-8"%>  
<%@ taglib prefix="s" uri="/struts-tags"%>  
  
  
  
  
  
  
  
    Click here to download  
  
  

<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>







	Click here to download

package com.struts2.action;  
  
import java.io.InputStream;  
  
import org.apache.struts2.ServletActionContext;  
  
import com.opensymphony.xwork2.ActionSupport;  
  
public class DownloadAction extends ActionSupport {  
  
    private static final long serialVersionUID = 1L;  
  
    /** 文件名 */  
    private String fileName;  
  
    public String getFileName() {  
        return fileName;  
    }  
  
    public void setFileName(String fileName) {  
        this.fileName = fileName;  
    }  
  
    public InputStream getInputStream() throws Exception {  
  
        this.fileName = "city.xml";  
  
        return ServletActionContext.getServletContext().getResourceAsStream(  
                "/download/" + fileName);  
    }  
  
    @Override  
    public String execute() throws Exception {  
        return SUCCESS;  
    }  
  
}  

package com.struts2.action;

import java.io.InputStream;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionSupport;

public class DownloadAction extends ActionSupport {

	private static final long serialVersionUID = 1L;

	/** 文件名 */
	private String fileName;

	public String getFileName() {
		return fileName;
	}

	public void setFileName(String fileName) {
		this.fileName = fileName;
	}

	public InputStream getInputStream() throws Exception {

		this.fileName = "city.xml";

		return ServletActionContext.getServletContext().getResourceAsStream(
				"/download/" + fileName);
	}

	@Override
	public String execute() throws Exception {
		return SUCCESS;
	}

}

配置struts.xml文件