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| 25. 11. 1. 获取Servlet的语境InitParameter |
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import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class MyServlet extends HttpServlet {
private String dbName="";
private String dbPassword="";
public void init(ServletConfig config) throws ServletException {
super.init(config);
ServletContext context = getServletContext();
dbName = context.getInitParameter("name");
dbPassword = context.getInitParameter("password");
}
public void doGet (HttpServletRequest req, HttpServletResponse res) throws IOException
{
ServletOutputStream out = res.getOutputStream();
res.setContentType("text/html");
out.println("<html><head><title>Basic Servlet</title></head>");
out.println("<body>Database username is <b>" + dbName);
out.println("</b><br>Database password is <b>" + dbPassword + "</b>");
out.println("</body></html>");
}
}
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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
"http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
<web-app>
<context-param>
<param-name>name</param-name>
<param-value>John</param-value>
</context-param>
<context-param>
<param-name>password</param-name>
<param-value>password</param-value>
</context-param>
<servlet><servlet-name>MyServletName</servlet-name>
<servlet-class>MyServlet</servlet-class>
</servlet>
<servlet-mapping><servlet-name>MyServletName</servlet-name>
<url-pattern>/index.html</url-pattern>
</servlet-mapping>
</web-app>
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 Download: ServletGetServletContextInitParameter.zip( 89 k) |
| 25. 11. ServletContext | | 25. 11. 1. | 获取Servlet的语境InitParameter | | | | 25. 11. 2. | 部署描述 | | |
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