我的JDK中没有javax.servlet包

Question

I am following Head First: Servlet and JSP and I was writing my first Servlet.
I tried to compile it using command line and I got an error that package javax.servlet does not exist.

So far, I have set the JAVA_HOME variable to the value: C:\\Program Files\\Java\\jdk1.7.0_11 and the PATH variable also to C:\\Program Files\\Java\\jdk1.7.0_11\\bin

How do I get the javax.servlet package?

Also, I have installed JDK 7 update 11 after the applet bug that was being exploited.
I have both JDK Update 11 and JDK Update 9 installed.
Should I get rid of Update 9 or is it not needed ?

Misc

Operating System: Windows 7 Home Premium 32 bit

What I also tried:

javac -cp .;D:\\Program Files\\apache-tomcat-7.0.35-windows-x86\\apache-tomcat-7.0.35\\lib\\servlet-api.jar Ch1servlet.java

I tried both forward slash AND backward slash. In both the cases I got an invalid flag error.

Answer 1

javac -cp .;D:\Program Files\apache-tomcat-7.0.35-windows-x86\apache-tomcat-7.0.35\lib\servlet-api.jar Ch1servlet.java

You're 99% of the way there, you just need to put some extra quotes in because the path to your servlet API jar contains spaces. Try this:

javac -cp ".;D:\Program Files\apache-tomcat-7.0.35-windows-x86\apache-tomcat-7.0.35\lib\servlet-api.jar" Ch1servlet.java

Answer 2

It will not be because

• Servlets are part of Java-EE and not Java-SE
• You need to download and add java-ee libraries if you need to use servlets