JSP檔案建立的常見問題解決方法
#問題一:JSP檔案無法解析
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <title>JSP Example</title> </head> <body> <h1>Hello World!</h1> </body> </html>
解決方法:
問題二:JSP檔案無法編譯
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <% int a = 10; int b = 20; int c = a + b; %> <!DOCTYPE html> <html> <head> <title>JSP Example</title> </head> <body> <h1>The sum of (a) and (b) is (c).</h1> </body> </html>
解決方法:
問題三:JSP檔案無法執行
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%> <!DOCTYPE html> <html> <head> <title>JSP Example</title> </head> <body> <h1>Products</h1> <ul> <c:forEach items="${products}" var="product"> <li>${product.name}</li> </c:forEach> </ul> </body> </html>
解決方法:
問題四:JSP檔案無法產生正確的HTML程式碼
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <title>JSP Example</title> </head> <body> <h1>Hello World!</h1> </body> </html>
解決方法:
問題五:JSP檔案無法產生正確的輸出
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <% int a = 10; int b = 20; int c = a + b; %> <!DOCTYPE html> <html> <head> <title>JSP Example</title> </head> <body> <h1>The sum of (a) and (b) is (c).</h1> </body> </html>
解決方法:
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