java JSP编译错误令牌“throws”语法错误，应为throw

4 月，2 周 Questions & Answers 623

我们在Tomcat7服务器上托管了一个JSP应用程序。作为构建过程的一部分，我们运行了一些自动测试，通过HtmlUnit调用这些JSP页面。我们注意到，当一些测试试图访问JSP文件时，会出现间歇性的JSP编译错误。这似乎与任何特定的测试无关

例如，我们遇到的最后一个编译错误是：

org.apache.jasper.JasperException: Unable to compile class for JSP:

An error occurred at line: [1] in the generated java file: [/tmp/myproject/work/Tomcat/localhost/_/org/apache/jsp/WEB_002dINF/jsp/admin/home_jsp.java]
Syntax error on tokens, delete these tokens

An error occurred at line: [97] in the generated java file: [/tmp/myproject/work/Tomcat/localhost/_/org/apache/jsp/WEB_002dINF/jsp/admin/home_jsp.java]
Syntax error on token(s), misplaced construct(s)

An error occurred at line: 1 in the jsp file: /WEB-INF/jspf/taglibs.jspf
Syntax error on tokens, delete these tokens
1: <%@ taglib uri="http://www.springframework.org/security/tags" prefix="authz" %>
2: <%@ taglib uri="http://www.springframework.org/tags" prefix="spring" %>
3: <%@ taglib uri="http://www.springframework.org/tags/form" prefix="form" %>
4: <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>


An error occurred at line: 1 in the jsp file: /WEB-INF/jspf/taglibs.jspf
Syntax error on token "}", delete this token
1: <%@ taglib uri="http://www.springframework.org/security/tags" prefix="authz" %>
2: <%@ taglib uri="http://www.springframework.org/tags" prefix="spring" %>
3: <%@ taglib uri="http://www.springframework.org/tags/form" prefix="form" %>
4: <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>


An error occurred at line: 1 in the jsp file: /WEB-INF/jspf/taglibs.jspf
Syntax error on token "(", ; expected
1: <%@ taglib uri="http://www.springframework.org/security/tags" prefix="authz" %>
2: <%@ taglib uri="http://www.springframework.org/tags" prefix="spring" %>
3: <%@ taglib uri="http://www.springframework.org/tags/form" prefix="form" %>
4: <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>


An error occurred at line: 1 in the jsp file: /WEB-INF/jspf/taglibs.jspf
Syntax error on token(s), misplaced construct(s)
1: <%@ taglib uri="http://www.springframework.org/security/tags" prefix="authz" %>
2: <%@ taglib uri="http://www.springframework.org/tags" prefix="spring" %>
3: <%@ taglib uri="http://www.springframework.org/tags/form" prefix="form" %>
4: <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>


An error occurred at line: 1 in the jsp file: /WEB-INF/jspf/taglibs.jspf
Syntax error on token(s), misplaced construct(s)
1: <%@ taglib uri="http://www.springframework.org/security/tags" prefix="authz" %>
2: <%@ taglib uri="http://www.springframework.org/tags" prefix="spring" %>
3: <%@ taglib uri="http://www.springframework.org/tags/form" prefix="form" %>
4: <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>


An error occurred at line: 1 in the jsp file: /WEB-INF/jspf/taglibs.jspf
Syntax error on token "throws", throw expected
1: <%@ taglib uri="http://www.springframework.org/security/tags" prefix="authz" %>
2: <%@ taglib uri="http://www.springframework.org/tags" prefix="spring" %>
3: <%@ taglib uri="http://www.springframework.org/tags/form" prefix="form" %>
4: <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>


An error occurred at line: 1 in the jsp file: /WEB-INF/jsp/admin/home.jsp
Syntax error on token "}", delete this token
1: <%@ include file="/WEB-INF/jspf/taglibs.jspf" %>
2: <html>
3: <head>
4:     <title>Administrator Home</title>

无论是在本地环境中，还是在负责运行这些系统测试的环境之外的任何其他环境中，我们都看不到这些错误，是的，我们使用相同的代码库

这些错误似乎只发生在第一次访问JSP文件时，因为我可以在Tomcat JSP工作目录中看到有一个home_JSP。java和一个home_jsp。类，这意味着jsp文件已正确地转换为servlet类，然后在以后正确编译。此外，我还看了一下家里的房子。java文件，无法看到与JSP编译器报告的编译错误相对应的任何明显错误

任何有助于解决这个问题的想法/建议都将不胜感激

干杯，奥利维尔

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java JSP编译错误令牌“throws”语法错误，应为throw

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