C, shell, and Perl develop CGI program environment configuration based on Tomcat

Configure the CGI Development Environment Based on tomcat7.0. The steps are as follows:

Take my tomcat 7 installation directory as an example: tomca_home =/users/Yangxin/documents/devtoos/Java/Apache-Tomcat-7.0.39

1. Open tomca_home/CONF/Web. xml

Open comments of CGI Serlvet configuration and URL ing

<servlet>        <servlet-name>cgi</servlet-name>        <servlet-class>org.apache.catalina.servlets.CGIServlet</servlet-class>        <init-param>          <param-name>debug</param-name>          <param-value>0</param-value>        </init-param>        <init-param>            <param-name>executable</param-name>            <param-value></param-value>        </init-param>        <init-param>          <param-name>cgiPathPrefix</param-name>          <param-value>WEB-INF/cgi</param-value>      </init-param>         <load-on-startup>5</load-on-startup>    </servlet>

<!-- The mapping for the CGI Gateway servlet -->    <servlet-mapping>        <servlet-name>cgi</servlet-name>        <url-pattern>/cgi-bin/*</url-pattern>    </servlet-mapping>

CGI servlet initialization parameters:

1> cgipathprefix: Set the access location of the CGI program in the application, the default access location is: Application name/WEB-INF/cgi

2> executable: CGI program parser. The default value is Perl. If it is null, it can be a script parser installed in the operating system environment variables, or a C/C ++ program.

3> parameterencoding: the default parameter encoding for accessing CGI servlet. The default value is UTF-8.

4> passshellenvironment: Specifies whether to enable shell environment variables. The default value is false.

5> stderrtimeout: timeout duration for reading standard error messages. The default value is 2000 milliseconds.

2. Open tomcat_home/CONF/context. xml

Add an attribute on the context nodePrivileged = true

<Context privileged="true">    <!-- Default set of monitored resources -->    <WatchedResource>WEB-INF/web.xml</WatchedResource>    <!-- Uncomment this to disable session persistence across Tomcat restarts -->    <!--    <Manager pathname="" />    -->    <!-- Uncomment this to enable Comet connection tacking (provides events         on session expiration as well as webapp lifecycle) -->    <!--    <Valve className="org.apache.catalina.valves.CometConnectionManagerValve" />    --></Context>

3. Create a CGI Test Program

Create an application under the tomcat_home/webapps directory, such as cgitest, create a WEB-INF directory under the cgitest application, create a CGI directory and a web under the WEB-INF directory. XML file, and then add a CGI test script program Hello in the CGI directory. SH and. C and compile it into. CGI and modify the access permission. Start Tomcat and access http: // localhost: 8080/cgitest/cgi-bin/Hello. Sh to access your own CGI program.

The created application directory structure is as follows:

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>Welcome to Tomcat</display-name>  <description>     Welcome to Tomcat  </description></web-app>

Hello. sh:

#!/bin/shecho "Content-type:text/html\n\n"echo "hello world"

A. c

#include <stdlib.h>#include <stdio.h>int main(int argc, const char** args){    printf("Content-type:text/html\n\n");    printf("i is cgi programe");    return 0;}

Test results: