src/com/ischoolbar/programmer/servlet/PhotoServlet.java

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package com.ischoolbar.programmer.servlet;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.fileupload.FileUploadException;

import com.ischoolbar.programmer.dao.StudentDao;
import com.ischoolbar.programmer.dao.TeacherDao;
import com.ischoolbar.programmer.model.Student;
import com.ischoolbar.programmer.model.Teacher;
import com.lizhou.exception.FileFormatException;
import com.lizhou.exception.NullFileException;
import com.lizhou.exception.ProtocolException;
import com.lizhou.exception.SizeException;
import com.lizhou.fileload.FileUpload;

/**
 * 
 * 公众号：springmeng
 *图片处理类servlet
 */
public class PhotoServlet extends HttpServlet {
	/**
	 * 
	 */
	private static final long serialVersionUID = 3274927179113071465L;
	public void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException{
		doPost(request, response);
	}
	public void doPost(HttpServletRequest request,HttpServletResponse response) throws IOException{
		String method = request.getParameter("method");
		if("getPhoto".equals(method)){
			getPhoto(request,response);
		}else if("SetPhoto".equals(method)){
			uploadPhoto(request,response);
		}
		
	}
	private void uploadPhoto(HttpServletRequest request,
			HttpServletResponse response) {
		// TODO Auto-generated method stub
		int sid = request.getParameter("sid") == null ? 0 : Integer.parseInt(request.getParameter("sid"));
		int tid = request.getParameter("tid") == null ? 0 : Integer.parseInt(request.getParameter("tid"));
		FileUpload fileUpload = new FileUpload(request);
		fileUpload.setFileFormat("jpg");
		fileUpload.setFileFormat("png");
		fileUpload.setFileFormat("jpeg");
		fileUpload.setFileFormat("gif");
		fileUpload.setFileSize(2048);
		response.setCharacterEncoding("UTF-8");
		try {
			InputStream uploadInputStream = fileUpload.getUploadInputStream();
			if(sid != 0){