JavaServer Pages (JSP)

Java Enterprise Edition (JavaEE) ??????????????????????????????????????????????JavaServer Pages (JSP) ?JavaEE?????????????Web???????????????JSP??JavaEE??????????

JSP??

JavaServer Pages (JSP) ??????????????????????HTML?XML?????Java???JSP???????Web???JSP?????.jsp?????????????JSP????Apache Tomcat????Java Servlet?????Java????JVM????JSP????????Web???????HTML/CSS/JavaScript?????????Web????????????

JSP?????

1. ???????

   • JSP???HTML???????JSP????JSP???????????????????????????????????Web????????????????????????????????????Java???

2. ??????

   • JSP?????????????JSTL, EL???????????????????URL??????????????????????????????????????

3. MVC?????

   • JSP?????????????Model-View-Controller (MVC) ?????Servlet??????JavaBeans???????????????????????

4. ?????????

   • ??Java???JSP??Java????????????????????????????????API???????????????JavaEE????EJB?JMS?JPA??????????

5. ?????

   • ??????CGI???JSP?????????????Servlet???????????????????????Web?????????JSP?????????????????

6. ????

   • JSP??????????????????????????JavaEE?????????-based????????????SSL??????????????JSP???????

JSP?Servlet???

JSP?Servlet??????????????????????Web????JSP??????????Servlet?????????????????JSP?????????Servlet????????????Servlet?????JSP????Servlet???????????????????????????????HTML??????????Java???Web?????

JSP?????

??JSP???????????Servlet??????????Servlet????????

1. ????

   • ?????JSP????JSP???JSP?????Servlet???????Servlet?

2. ?????

   • ????????????Servlet?????????JSP????Java???JSP????????????????HTML?????????????

3. ???

   • ?Web???????????????JSP???Servlet???????

JSP????

JSP????????????

• JSP??? (<%= ... %>)??????????????????
• ???? (<% ... %> ? <%! ... %>)?????Java??????_service()???????????????????????
• ?? (<%! ... %>)???Java??????????????JSP?????
• ?? (<%@ ... %>)???JSP??????????????????????????
• ?? (<jsp:...> ? <taglib:...> ??)????????????????????????????????

JSP??????

??JSP????????????????????????????

• ????????????JSP?????????????Servlet?????????JSP????????
• ???JSP??????????.java?.class????????????????????
• ????????????Servlet????????????????????????
• ????Web???????????????RESTful API??JSP???????????????????React?Vue???????REST?????????

?????JavaServer Pages??JavaEE????????????Web??????????????????????Web??????????????????????????JSP???????????Web?????