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内置Tomcat并使用servlet

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文章字数：159,阅读全文大约需要1分钟

  1. servlet类
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public class HelloServlet extends HttpServlet{
    private static final long serialVersionUID = 1L;
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.getWriter().write("hellowrld");
    }
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doGet(req, resp);
    }
}
  1. 创建内置的tomcat并使用servlet
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// 创建tomcat应用对象
Tomcat tomcat = new Tomcat();
// 设置端口
tomcat.setPort(8080);
// 是否自动部署
tomcat.getHost().setAutoDeploy(false);
// 创建上下文
StandardContext standardContext = new StandardContext();
// 设置项目名
standardContext.setPath("/sb");
// 监听上下文
standardContext.addLifecycleListener(new FixContextListener());
// 向tomcat容器对象添加上下文配置     tomcat.getHost().addChild(standardContext);
// 创建Servlet
tomcat.addServlet("/sb", "helloword", new HelloServlet());
// Servlet映射
standardContext.addServletMappingDecoded("/hello", "helloword");
//启动tomcat容器
tomcat.start();
//等待
tomcat.getServer().await();