Servlet快速入门
Servlet快速入门
步骤:
-
创建web项目,导入Servlet依赖坐标
<dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency>
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创建:定义一个类,实现Servlet接口,并重写接口中所有方法,并在service方法中输入一句话。
public class ServletDemo1 implements Servlet{ public void service(){) }
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配置:在类上使用@WebServlet注解,配置该Servlet的访问路径
@WebServlet("/demo1") public class ServletDemo1 implements Servlet{ }
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访问:启动Tomcat,浏览器输入URL访问该Servlet
http://localhost:8080/web-demo/demo1
package com.charley;
import javax.servlet.*;
import javax.servlet.annotation.WebServlet;
import java.io.IOException;
@WebServlet("/demo1")
public class ServletDemo1 implements Servlet {
@Override
public void init(ServletConfig servletConfig) throws ServletException {
}
@Override
public ServletConfig getServletConfig() {
return null;
}
@Override
public void service(ServletRequest servletRequest, ServletResponse servletResponse) throws ServletException, IOException {
System.out.printf("This is servlet test");
}
@Override
public String getServletInfo() {
return null;
}
@Override
public void destroy() {
}
}