2024年4月22日发(作者:)
emoryError: PermGen space 内存溢出
未解决?????????????不明白为什么,什么错误导致的
tException:
Request[/yhb] does not contain handler parameter named
‘method’. This may be caused by whitespace in the label text.
解决:form表单中缺少提交方法method=post/get
astException: [;
at
heck(:
44)
tException:
Could not open Hibernate Session for transaction; nested exception is
cJDBCException: Cannot
open connection
sDefFoundError:
org/eclipse/jdt/internal/compiler/ast/ArrayTypeReference
解决办法:内存溢出,重新启动服务器
METHOD传参数方法找不到,ACTION中,方法的四个参数顺序不能颠倒
tsList(ActionMapping mapping,ActionForm form,
HttpServletRequest request,
HttpServletResponse response)throws Exception
异常:不能连接数据库(解决: 数据库连接不上,连接异常,1,检查网络连接,
2,检查是否有连接驱动,)
Could not obtain connection metadata
tedException: Cannot create
PoolableConnectionFactory
(Io异常: Connection
refused(DESCRIPTION=(TMP=)(VSNNUM=150999297)(ERR=12505)(ERROR_STACK=(
ERROR=(CODE=12505)(EMFI=4)))))
连接拒绝
[SettingsFactory] Could not obtain connection metadata
tedException: Cannot create
PoolableConnectionFactory
(Io异常: The Network Adapter could not establish the connection)
网络适配器不能建立连接,ORACLE数据库服务器没有打开
ption: To(classFile) failed
解决:JSP文件中有不能运行的JAVA代码!
Unable to find a value for “id” in object of class “”
using operator “.”
解决:
items=”${listFun}” 错写为items=”listFun”
Illegal use of <when>-style tag without <choose> as its
direct parent
”${uPur=’yuanYouPur’}” contains invalid expression(s):
ption: Encountered “=”, expected
one of [”]”, “.”, “>”, “gt”, “<”, “lt”, “==”, “eq”, “<=”,
“le”, “>=”, “ge”, “!=”, “ne”, “[”, “+”, “-“, “*”, “/”,
“div”, “%”,
“mod”, “and”, “&&”, “or”, “||”, “?”]
解决:JSTL语言表达使用错误!
The “.” operator was supplied with an index value of type
“” to be applied to a List or array, but that value
cannot be converted to an integer.
解决:JSP页面中,用‘ ${} ’输出获得的对象的属性,使用错误,例如返回
LIST数组,其中存的对象是OBJ(页面中可以定义变量obj代表一
个OBJ),取OBJ的属性AGE,NAME, 应该是${} ${}即可获
得OBJ的AGE和NAME属性值,
检查在使用${}的地方${} ${}是否正确,
异常
不能正常打开JSP文件!(2007.08.31) enough of enjoyment and comfort
Unable to create this part due to an internal error. Reason for the failure:
Widget is disposed
eption: Widget is disposed
解决方法:
1到window-preference-general-editors-file associations下看看
你的*.html默认打开方式是什么。
你改成myeclipse html editor就能打开了。
2问题已经解决,这应该是MyEclipse5.0M2的一个bug,8月11号新发布
的版本5.0.1GA已经修复了此bug。
14:56:10,765 ERROR [DispatchAction] Dispatch[/proAdd] to method
getOnePro returned an exception
tionTargetException
Caused by: : Unresolved compilation problem:
at
Pro(:60)
... 34 more
解决:查找API,解释如下(本错误是因为该方法没有编译)
InvocationTargetException是一种包装由调用方法或构造方法所抛出异常的
经过检查的异常。
从版本1.4开始,此异常已经更新,符合通用异常链机制。“目标异常”是在构
造的时候提供的,
可以通过getTargetException() 方法访问,这类对象目前被认为是导致异常的
原因,
可以通过se() 方法以及后面提到的“遗留方法”访问它。
该异常问题同上!
09:11:22,156 INFO [PropertyMessageResources] Initializing,
config=’trings’, returnNull=true
09:11:22,218 ERROR [DispatchAction] Dispatch[/login] to method tree
returned an exception
tionTargetException
Caused by: : Unresolved compilation problem:
Syntax error on token “]”, { expected
at (:60)
... 35 more
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