1,Error:(環境 JDK 8 , Tomcat 7)
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org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 1 in the generated java file
The type java.util.Map$Entry cannot be resolved. It is indirectly referenced from required .class files
Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:102)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:331)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:469)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:378)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
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解決辦法:選擇合適的JDK版本,我把JDK 8換到JDK 7.
2,Error:(在Java EE裏使用Tomcat 7)
Could not delete E:/JavaEE/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/FaceWeb/picture. May be locked by another process.
原因:項目中可能有一些殘餘的東西造成衝突
解決辦法:參考http://stackoverflow.com/questions/6058558/tomcat-project-cleaning-error
1,清理Tomcat服務器, 右鍵Tomcat服務器,選擇clean
2,清理項目: 在菜單欄裏找到“Project”右鍵,點擊 Clean
.
3,在tomcat server下找到項目,單擊:Clean Module Work Directory
最後問題解決。