handledata.java

基于mvc的一个测试三角形的jsp代码,输入三个数 可测试能否组成三角形 如果是则求出它的面积

package rain.snow;
import flower.grass.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;


import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.lang.*;


public class HandleData extends HttpServlet {
	
	
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		process(request,response);
		}

	
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		process(request,response);
	}
	public void process(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		
		String sideA=request.getParameter("sideA");
	      String sideB=request.getParameter("sideB");
	      String sideC=request.getParameter("sideC");
	   
			
			flower.grass.Triangle c=new flower.grass.Triangle();
			String result=c.is_triangle(sideA,sideB,sideC); 
			if(result.equals("true")){
				
				String result1=c.area(sideA,sideB,sideC);
				request.setAttribute("result1", result1);
				request.setAttribute("result", result);
			}
			else{
				request.setAttribute("result1", "");
				request.setAttribute("result", result);
			}
			
		    request.getRequestDispatcher("/input.jsp").forward(request,response);
		
			
		
	}

	
}