indexrk.jsp
if(doc.data().disease=="" && (doc.data().test!="exit site" || doc.data().test!="exit" || doc.data().test!="Exit Site") ){
cell5=row.insertCell(6);
cell5.innerHTML="<form method='post' target='tabCalc' action='ImageCalc'><input type='hidden' name='test' id='test' value="+doc.data().test+"><input type='hidden' name='latestsample' id='latestsample' value="+doc.data().image.toString()+"> <input type='hidden' name='samid' id='samid"+rownum+"' value="+doc.id.toString()+"><input type='hidden' name='patpat' id='patpat"+rownum+"' value="+doc.data().Patient.toString()+"><input type='hidden' name='colorvol' id='colorvol"+rownum+"' value="+doc.data().colour.toString()+"> <input type='submit' onclick='act()' value='Calculate' class='btn editbtn' id='b"+rownum+"'> </form>";
cell5.style.width="100px";
row.style.background="#b7daa4";
}
ImageCalc.java
package com.example.servlet;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.ServletInputStream;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.net.URL;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
@WebServlet(
name = "ImageCalc",
urlPatterns = "/ImageCalc"
)
public class ImageCalc extends HttpServlet{
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String[] answer;
String image = req.getParameter("latestsample");
//String DocId=req.getParameter("dropDownDest");
String sampleId=req.getParameter("samid");
String colorvol=req.getParameter("colorvol");
String type=req.getParameter("test");
System.out.println("vgierfvbierfvieufbeuj "+type);
//req.setAttribute("name",DocId);
if(type.equalsIgnoreCase("pdbag") ||type.equalsIgnoreCase("cloudy bag")) {
Patients p=new Patients();
try {
p.patients(image.toString());
} catch (SQLException | ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
req.setAttribute("hexval",p.gethexval());
req.setAttribute("color"," ");
req.setAttribute("disease",p.getinterpretation());
req.setAttribute("id",sampleId);
p.clearall();
}
else if(type.equalsIgnoreCase("volume")) {
int voltype=Integer.valueOf(colorvol);
Volume v=new Volume();
String fvol="";
try {
fvol = Volume.vol(image.toString(),voltype);
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
req.setAttribute("id",sampleId);
req.setAttribute("color", colorvol);
req.setAttribute("hexval","---");
//req.setAttribute("color","not required");
req.setAttribute("disease",fvol);
//req.setAttribute("disease",p.getinterpretation());
}
else if(type.equals("Exit site")|| type.equals("exit")) {
req.setAttribute("hexval","---");
req.setAttribute("color","---");
req.setAttribute("disease","---");
req.setAttribute("id",sampleId);
}
RequestDispatcher view = req.getRequestDispatcher("res.jsp");
view.forward(req, resp);
}
}
错误信息
HTTP Status 404 – Not Found
Type Status Report
Message /WebProject/ImageCalc
Description : The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.
我的想法：
该错误可能是由于路径引起的。由于Servlet位于WebProject / src / com / example / Imagecalc位置。但是我不知道如何设置正确的URL。
最佳答案
您的web.xml可能不正确。
正确的web.xml应该根据您的项目：
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<servlet>
<servlet-name>imageCalc</servlet-name>
<servlet-class>com.example.servlet.ImageCalc</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>imageCalc</servlet-name>
<url-pattern>/ImageCalc</url-pattern>
</servlet-mapping>
</web-app>
尝试在浏览器上单击URL：
http://localhost:8080/WebProject/ImageCalc-浏览器应基于GET / POST请求打开。