Java Can';t编译servlet文件。
我正在测试一个演示servlet文件,但是servlet似乎没有响应。我不能理解这个问题 当我在HTML表单上单击submit时,URL是 localhost:8080/Beer-V1/SelectBeer.do 但是,它不应该被选中吗?因为@WebServlet(“/BeerSelect”) web.xmlJava Can';t编译servlet文件。,java,servlets,servlet-3.0,Java,Servlets,Servlet 3.0,我正在测试一个演示servlet文件,但是servlet似乎没有响应。我不能理解这个问题 当我在HTML表单上单击submit时,URL是 localhost:8080/Beer-V1/SelectBeer.do 但是,它不应该被选中吗?因为@WebServlet(“/BeerSelect”) web.xml <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/X
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:web="http://java.sun.com/xml/ns/javaee/web- app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" metadata-complete="false"
version="3.0">
<servlet>
<servlet-name>CH3 Beer</servlet-name>
<servlet-class>com.example.web.BeerSelect</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>CH3 Beer</servlet-name>
<url-pattern>/SelectBeer.do</url-pattern>
</servlet-mapping>
</web-app>
甲烷啤酒
com.example.web.BeerSelect
甲烷啤酒
/选择啤酒
BeerSelect.java
package com.example.web;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet("/BeerSelect")
public class BeerSelect extends HttpServlet {
private static final long serialVersionUID = 1L;
public BeerSelect() {
super();
}
@Override
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("Beer Selection Advice<br>");
String c = request.getParameter("color");
out.println("<br> Got Beer Color " + c);
}
package com.example.web;
导入java.io.IOException;
导入java.io.PrintWriter;
导入javax.servlet.ServletException;
导入javax.servlet.annotation.WebServlet;
导入javax.servlet.http.HttpServlet;
导入javax.servlet.http.HttpServletRequest;
导入javax.servlet.http.HttpServletResponse;
@WebServlet(“/BeerSelect”)
公共类BeerSelect扩展了HttpServlet{
私有静态最终长serialVersionUID=1L;
公共啤酒精选{
超级();
}
@凌驾
受保护的void doPost(HttpServletRequest请求,
HttpServletResponse响应)引发ServletException,IOException{
response.setContentType(“text/html”);
PrintWriter out=response.getWriter();
out.println(“啤酒选择建议
”;
字符串c=request.getParameter(“颜色”);
out.println(“
得到啤酒颜色”+c);
}
}
当我在HTML表单上单击submit时,URL是localhost:8080/Beer-V1/SelectBeer.do
但是,它不应该被选中吗?因为@WebServlet(“/BeerSelect”)
<servlet-mapping>
<servlet-name>CH3 Beer</servlet-name>
<url-pattern>/SelectBeer.do</url-pattern>
</servlet-mapping>
甲烷啤酒
/选择啤酒
xml DD会覆盖注释。我是否要更改/SelectBeer.do以选择BeerSelect?同时保留@WebServlet(“/BeerSelect”)?@RonyJohn删除web.xml并使用注释或其他方式。好的,我在这里做了任何更改吗。我删除了web.xml并保留了注释。