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: 中的

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