[转]Java——Servlet的配置和测试

本文转自:http://blog.csdn.net/makefish/article/details/6904807

 

本文以一个实例介绍如何用Java开发Servlet。

主要内容有:

配置和验证Tomcat。

测试Servlet

在这之前需要安装Java,请参考“Java——环境配置和Hello”。

第一部分:配置和验证Tomcat:

1,下载Tomcat
http://tomcat.apache.org/download-70.cgi
2, 设置classpath
追加C:\MY\tools\java\apache-tomcat-7.0.22\lib\servlet-api.jar
3,设置JAVA_HOME和JRE_HOME
C:\Program Files\Java\jre7
C:\Program Files\Java\jdk1.7.0_01
4,启动tomcat
C:\MY\tools\java\apache-tomcat-7.0.22\bin>startup.bat
5,打开测试页面
http://127.0.0.1:8080/
6,编写代码:
目录结构:
根目录:C:\MY\tools\java\apache-tomcat-7.0.22\webapps\myapp
C:\MY\tools\java\apache-tomcat-7.0.22\webapps\myapp\WEB-INF\web.xml
C:\MY\tools\java\apache-tomcat-7.0.22\webapps\myapp\index.jsp
web.xml开始******************************
<?xml version="1.0" encoding="ISO-8859-1"?> 
<!DOCTYPE web-app 
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" 
"http://java.sun.com/dtd/web-app_2_3.dtd"> 
<web-app> 
<display-name>My Web Application</display-name> 
<description> 
A application for test. 
</description>
</web-app> 
web.xml结束******************************
index.jsp开始******************************
<html>
<body>
<center> 
Now time is: <%=new java.util.Date()%> 
</center>
</body>
</html>
index.jsp结束******************************
7,重启tomcat
C:\MY\tools\java\apache-tomcat-7.0.22\bin>shutdown.bat
C:\MY\tools\java\apache-tomcat-7.0.22\bin>startup.bat
8,打开页面http://localhost:8080/myapp/index.jsp

第二部分:测试Servlet
1,编写Servlet,TestServlet.java
package xuxing.java.servelt; 
import java.io.IOException; 
import java.io.PrintWriter; 
import javax.servlet.ServletException; 
import javax.servlet.http.HttpServlet; 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
public class TestServlet extends HttpServlet { 
protected void doGet(HttpServletRequest request, HttpServletResponse response) 
throws ServletException, IOException { 
PrintWriter out=response.getWriter(); 
out.println("<html><body><h1>This is a servlet TestServlet.</h1></body></html>"); 
out.flush(); 

}
2,编译并拷贝TestServlet.java
1),javac TestServlet.java

javac TestServlet.java

这个会生成TestServlet.class。

2),建立立文件夹C:\MY\tools\java\apache-tomcat-7.0.22\webapps\myapp\WEB-INF\classes\xuxing\java\并将TestServlet.class拷贝进去。
3,修改 web.xml
<?xml version="1.0" encoding="ISO-8859-1"?> 
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
                      http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
  version="3.0"
  metadata-complete="true">
<display-name>My Web Application</display-name>
<description>A application for test.</description>
<servlet> 
<servlet-name>TestServlet</servlet-name> 
<servlet-class>xuxing.java.servlet.TestServlet</servlet-class> 
</servlet>
<servlet-mapping> 
<servlet-name>TestServlet</servlet-name> 
<url-pattern>/testServlet</url-pattern> 
</servlet-mapping>
</web-app> 
4,重启Tomcat
C:\MY\tools\java\apache-tomcat-7.0.22\bin>shutdown.bat
C:\MY\tools\java\apache-tomcat-7.0.22\bin>startup.bat
5,打开页面http://localhost:8080/myapp/testServlet

 

posted on 2012-06-13 17:03  freeliver54  阅读(11998)  评论(3编辑  收藏  举报

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