Java Servlet Tutorial for Beginners

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Java Servlet:

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6. Java Servlet.

(web.xml). , , web.xml. web.xml Java Servlet filters, javax.servlet.Filter .

Servlet

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• Deploy - .
• Src - Java net.codejava.servlet.
• WebContent - JSP -.
• WebContent \ WEB-INF - web.xml.
• WebContent \ WEB-INF \ - .

Java QuickServlet.java src \ net \ codejava \ servlet .

HttpServlet:

• init () - , . .
• doGet () - , HTTP- GET.

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1. HttpServletRequest - HTTP-, GET / POST, HTTP-, getParameter () getHeader () .
2. HttpServletResponse - HTTP-, HTML . doGet () HTML-, , , «, Java!».

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1. DoPost () - , HTTP POST.
2. DoGet () - Http.ServletRequest Http.ServletResponse, . .
3. Destroy () - , Java, ee Servlet .

JSP-

index.jsp WebContent .

JSP:

1. href = Quick.Servlet, URL .
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JSP .

Java web Servlet

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TOMCAT_HOME\lib . QuickServlet, . : javac -cp TOMCAT_HOME \ lib \ servlet-api.jar "-d CLASS_DIR SRC_DIR \ QuickServlet.java.

TOMCAT.HOME, CLASS_DIR SRC_DIR : TOMCAT_HOME. . , : CLASS_DIR =WebContent \ WEB-INF \ classes SRC_DIR =src \ net \ codejava \ servlet.

QuickServlet.java .class WebContent \ WEB-INF \ classes.

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Java EE WAR. , :

• jarcfvdeploy\QuickServletApp.war -C WebContent.

jar zip- Quick.ServletApp.war . Quick.ServletApp.war , Tomcat. , Tomcat 7.exe . , Quick.ServletApp.war 8080.

QuickServletApp

- : HTTP: // : 8080 / QuickServletApp. , index.jsp .

HTTP GET, « , GET». HTTP POST, . «», .

Tomcat

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Servlet - API Java. HttpServlet - , HTTP-, , GenericServlet, Servlet . Servlet abstract .

: voidinit ( Servlet.Config) voiddestroy () voidservice ( Java Servlet request, Servlet.Response)

: Servlet.Config getServlet.Config () getServlet.Info ().

Java

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If the user does not currently use Java Servlets to create dynamic content, he misses an interesting field with unlimited career opportunities.