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  • Android 本地tomcat服务器接收处理手机上传的数据之环境搭建

     
    本篇文章
     
    环境:win7 + jdk1.7 + tomcat v8.0.53
     
    工具:
    1.Eclipse 
    Eclipse Java EE IDE for Web Developers.
    Version: Luna Service Release 2 (4.4.2)
    Build id: 20150219-0600
     
     
    2. tomcat v8.0.53
     
    知识点:java + servlet + tomcat
     
    创建web工程方法
    1. File --- new  --- Dynamic Web Project 
     
     
     
    看图说话:
    a. 填写web工程名:First
    b. 点击“New Runtime...“,”选择“Apache Tomcat v8.0”(PS:由于Eclipse luna最大支持 Apache Tomcat v8.0,所以PC端最大只能安装tomcat v8版本,不支持v9)
    c. 点击"Next"
     
    然后如下:
     
     
    a. 选择tomcat 在本地的位置
    b. 选择"JRE"
    c. 点击finish
     
    然后如下:
     
     
    点击“Next”
     
     
     
    点击“Next”
     
     
     
    勾选“Generate web.xml ...”,这样,可以自动生成web.xml文件,点击“finish”按钮
     
    项目创建完成:
     
     
     
    2. 创建servlet
     
     

     
     
    点击“Next”
     
     
     
    点击“Next”
     
     
     
    直接点击“finish”
     
     
     
    修改 ServletDemo1.java文件,内容如下:
     
    package com.servlet.demo;
    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;
    /**
     * Servlet implementation class ServletDemo1
     */
    @WebServlet(asyncSupported = true, urlPatterns = { "/ServletDemo1" })
    public class ServletDemo1 extends HttpServlet {
           private static final long serialVersionUID = 1L;
           /**
            * The doGet method of the servlet. <br>
            *
            * This method is called when a form has its tag value method equals to get.
            *
            * @param request
            *            the request send by the client to the server
            * @param response
            *            the response send by the server to the client
            * @throws ServletException
            *             if an error occurred
            * @throws IOException
            *             if an error occurred
            */
           public void doGet(HttpServletRequest request, HttpServletResponse response)
                        throws ServletException, IOException {
                 response.setContentType("text/html");
                 PrintWriter out = response.getWriter();
                 out.println("<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">");
                 out.println("<HTML>");
                 out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
                 out.println("  <BODY>");
                 out.print("    This is ");
                 out.print(this.getClass());
                 out.println(", using the GET method");
                 out.println("  </BODY>");
                 out.println("</HTML>");
                 out.flush();
                 out.close();
           }
           /**
            * The doPost method of the servlet. <br>
            *
            * This method is called when a form has its tag value method equals to
            * post.
            *
            * @param request
            *            the request send by the client to the server
            * @param response
            *            the response send by the server to the client
            * @throws ServletException
            *             if an error occurred
            * @throws IOException
            *             if an error occurred
            */
           public void doPost(HttpServletRequest request, HttpServletResponse response)
                        throws ServletException, IOException {
                 response.setContentType("text/html");
                 PrintWriter out = response.getWriter();
                 out.println("<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">");
                 out.println("<HTML>");
                 out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
                 out.println("  <BODY>");
                 out.print("    This is ");
                 out.print(this.getClass());
                 out.println(", using the POST method");
                 out.println("  </BODY>");
                 out.println("</HTML>");
                 out.flush();
                 out.close();
           }
    }
     
    3. 修改web.xml 文件为:
     
    <?xml version="1.0" encoding="UTF-8"?>
    <web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee"
           xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
           <welcome-file-list>
                 <welcome-file>index.jsp</welcome-file>
           </welcome-file-list>
            <servlet>
                 <servlet-name>ServletDemo1</servlet-name>
                 <servlet-class>com.servlet.demo.ServletDemo1</servlet-class>
           </servlet>
           <servlet-mapping>
                 <servlet-name>ServletDemo1</servlet-name>
                 <url-pattern>/test/ServletDemo1</url-pattern>
           </servlet-mapping>
    </web-app>
     
    备注:上面高亮部分的名称要一致
     
     
     
     
    4. 开始部署
     
     
     

     
    直接点击“finish”按钮,如下(虽然出现Not Found,此时不要担心,还没开始运行servlet 呢,继续往下看):
     
     
     
    5. 运行servlet
     
    选中“ServletDemo1”--- 右键 --- Run As --- Run on Server
     
     
     
     
     
    点击“finish”按钮,运行效果如下,成功!
     
     

     
     
     
    PS:
     
     
    2.打印log方法:
     
    方法一:
    将 commons-logging-1.1.1.jar 拷贝到 libs文件夹:
     
     
    private static Log log1 = LogFactory.getLog(ServletDemo1.class);
     
    doGet方法内加入:log1.info("!!!!");
     
    方法二:
    System.out.println("xxx");
     
    方法三:
    getServletContext().log("xxx");
     
    注意:加入log日志后,如果log不生效,clean下工程:

    然后在浏览器输入:http://localhost:8080/First/test/ServletDemo1,回车后,可以看到日志输出

     

     
     
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  • 原文地址:https://www.cnblogs.com/onelikeone/p/9958108.html
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