showimageaction.java

Struts_Spring_Hibernate实现的基于RBAC的权限管理系统

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.xaccp.struts.action;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.xaccp.biz.po.User;
import com.xaccp.biz.service.UserService;

/** 
 * MyEclipse Struts
 * Creation date: 09-25-2006
 * 
 * XDoclet definition:
 * @struts.action validate="true"
 */
public class ShowImageAction extends Action {

	private UserService userService;
	
	public UserService getUserService() {
		return userService;
	}

	public void setUserService(UserService userService) {
		this.userService = userService;
	}

	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		
		response.setContentType("image/jpeg");
		int userId = Integer.parseInt(request.getParameter("userId"));
		User user = userService.findUserById(userId);
		try {
			System.out.println(user);
			InputStream in = new BufferedInputStream(user.getFace().getBinaryStream());
			OutputStream out = new BufferedOutputStream(response.getOutputStream());
			int i;
			while ((i=in.read())!=-1) {
				out.write(i);
			}
			out.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
		return null;
	}
}