内嵌式tomcat启动web工程

package com.test; import org.apache.catalina.Context; import org.apache.catalina.connector.Connector; import org.apache.catalina.startup.Tomcat; import org.apache.tomcat.util.scan.StandardJarScanner; import javax.servlet.ServletException; /** * 嵌入式tomcat web应用启动类， */ public class TomcatBootstrapHelper { private static final char ENTER_CHAR = '\n'; /** * 默认端口 */ private static final int DEFAULT_PORT = 8080; private static final String DEFULT_ENV = "dev"; private int port = DEFAULT_PORT; /** * 是否启用servlet 3.0 支持，如果启用的话，就需要扫描jar包中是否有Servlet等annotation，这个会影响启动时间，默认不开启 */ private boolean isServlet3Enable = false; /** * 构建一个<code>TomcatBootstrapHelper.java</code> * * @param port 端口 * @param isServlet3Enable 是否启用servlet 3.0 * 支持，如果启用的话，就需要扫描jar包中是否有Servlet等annotation，这个会影响启动时间，默认不开启 * @param env 设置环境变量 spring.profiles.active */ public TomcatBootstrapHelper(int port, boolean isServlet3Enable, String env) { System.setProperty("spring.profiles.active", env); this.port = port; this.isServlet3Enable = isServlet3Enable; } /** * 构建一个<code>TomcatBootstrapHelper.java</code><br> * 环境变量spring.profiles.active=dev * * @param port 端口 * @param isServlet3Enable 是否启用servlet 3.0 * 支持，如果启用的话，就需要扫描jar包中是否有Servlet等annotation，这个会影响启动时间，默认不开启 */ public TomcatBootstrapHelper(int port, boolean isServlet3Enable) { this(port, isServlet3Enable, DEFULT_ENV); } /** * 构建一个<code>TomcatBootstrapHelper.java</code><br> * 不启用servlet 3.0 支持、环境变量spring.profiles.active=dev * * @param port 端口 */ public TomcatBootstrapHelper(int port) { this(port, false); } /** * 构建一个<code>TomcatBootstrapHelper.java</code><br> * 端口：8080、不启用servlet 3.0 支持、环境变量spring.profiles.active=dev */ public TomcatBootstrapHelper() { this(DEFAULT_PORT); } public void start() { try { long begin = System.currentTimeMillis(); Tomcat tomcat = new Tomcat(); configTomcat(tomcat); tomcat.start(); long end = System.currentTimeMillis(); log(end - begin); //在控制台回车就可以重启，提高效率 while (true) { char c = (char) System.in.read(); if (c == ENTER_CHAR) { begin = System.currentTimeMillis(); System.out.println("重启tomcat..."); tomcat.stop(); tomcat.start(); end = System.currentTimeMillis(); log(end - begin); } } } catch (Exception e) { e.printStackTrace(); } } private void configTomcat(final Tomcat tomcat) throws ServletException { tomcat.setBaseDir("target"); tomcat.setPort(port); Connector connector = new Connector("HTTP/1.1"); connector.setPort(port); connector.setURIEncoding("utf-8"); tomcat.setConnector(connector); tomcat.getService().addConnector(connector); String webappPath = getWebappsPath(); System.out.println("webapp目录：" + webappPath); Context ctx = tomcat.addWebapp("/", webappPath); StandardJarScanner scanner = (StandardJarScanner) ctx.getJarScanner(); if (!isServlet3Enable) { scanner.setScanAllDirectories(false); scanner.setScanClassPath(false); } tomcat.setSilent(true); System.setProperty("org.apache.catalina.SESSION_COOKIE_NAME", "JSESSIONID" + port); } private void log(long time) { System.out.println("********************************************************"); System.out.println("启动成功: http://127.0.0.1:" + port + " in:" + time + "ms"); System.out.println("您可以直接在console里敲回车，重启tomcat"); System.out.println("********************************************************"); } public String getWebappsPath() { String file = getClass().getClassLoader().getResource(".").getFile(); return file.substring(0, file.indexOf("target")) + "src/main/webapp"; } }