//自己指定一个类型转换器(将String转成Date) DateConverter converter = new DateConverter(); converter.setPattern(new String("yyyy-MM-dd")); ConvertUtils.register(converter,Date.class); //映射封装 BeanUtils.populate(user, properties); 假设上面的代码是正确的,但是最后还是报错了,就是你就已经转换了…

Question 1.HTTP Status 500 - Unable to compile class for JSP:'***' cannot be resolved to a type 原因分析:cannot be resolved to a type 基本上是该类没有被识别出来,编译的时候,编译路径下没有该类对应的库文件, 解决方法: 1.拷贝类对应的jar到tomcat lib目录下:C:\Program Files\Java\apache-tomcat-8.0.9\lib 2.关闭t…

HTTP Status 500 - An exception occurred processing JSP page /WEB-INF/test/showCountry.jsp at line 11 type Exception report message An exception occurred processing JSP page /WEB-INF/test/showCountry.jsp at line 11 description The server encountered a…

HTTP Status 500 - Request processing failed; nested exception is org.springframework.jdbc.BadSqlGrammarException: type Exception report message Request processing failed; nested exception is org.springframework.jdbc.BadSqlGrammarException: descriptio…

1.什么操作出现:当我在项目中添加产品或者修改时,浏览器出现HTTP Status 500 - Request processing failed; nested exception is org.hibernate.exception.GenericJDBCException: could not execute statement; Ecplise出现这个: 十二月 20, 2017 1:51:02 下午 org.apache.catalina.core.StandardWrapperVal…

今天在Tomcat7上发布了一个war,过一阵子发现localhost:8080都进不去了.在浏览器输入http://localhost:8080出现如下内容: HTTP Status 500 - java.lang.ClassCastException: org.apache.jasper.el.ELContextImpl cannot be cast to org.apache.jasper.el.ELContextImpl type Exception report message jav…

报错如下: HTTP Status 500 - Unable to instantiate Action, visitAction, defined for 'visit_toAddPage' in namespace '/'Error creating bean with name 'visitAction' defined in class path resource [visit.xml]: Cannot resolve reference to bean 'visitService' w…

使用struts2时碰到这样的错误 HTTP Status 500 - Unable to instantiate Action, customerAction, defined for 'customer_toAddPage' in namespace '/'Error creating bean with name 'customerAction' defined in class path resource [customer.xml]: Error setting property va…

HTTP Status 500 - Unable to show problem report: freemarker.core.InvalidReferenceException: The following has evaluated to null or missing: ==> msg [in template "org/apache/struts2/dispatcher/error.ftl" at line 68, column 31] Tip: If the fail…

HTTP Status 500 - Request processing failed; nested exception is java.lang.NullPointerException type Exception report message Request processing failed; nested exception is java.lang.NullPointerException description The server encountered an internal…