Ognlvaluestack.warn49 Error Setting Expression
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Unexpected Exception Caught Setting On Class Error Setting Expression With Value
Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community unexpected exception caught setting '_' on 'class of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Struts2 conversion warning up vote 1 down vote favorite 1 I am developing a model based web
Com.opensymphony.xwork2.interceptor.parametersinterceptor Error
application on Struts2.2.3. What I mean by model is, database tables are represented as java classes(you know). And models have properties with types such as Integer, Date and so on. When I render these values on page, and when user puts values other than it is original type, it always giving me exceptions. It is not reaching validation function before getting populated. And it shows following message on page: Invalid field value params interceptor in struts2 example for field "estimates[1].count". Also shows following exception on console WARN OgnlValueStack:60 - Error setting expression 'estimates[1].count' with value '[Ljava.lang.String;@a61ffd' I saw several people had this issue before like this: http://osdir.com/ml/user-struts.apache.org/2009-12/msg00037.html I have my ConversionError interceptor removed from my default stack. And my devMode is off. However, I am still getting these errors. UPDATE: I found that error exception can be caught by MyAction-validation.xml and error message can be customized. But OGNL warning still remained. Thus the question is: Is there any way not to show this warning on log? validation error-handling struts2 type-conversion ognl share|improve this question edited Feb 2 '12 at 8:48 asked Jan 27 '12 at 10:27 batbaatar 4,5502925 please show us some code, an example of an action this is happening with and that actions xml (if any is used). –Quaternion Jan 30 '12 at 20:39 add a comment| 2 Answers 2 active oldest votes up vote 1 down vote The problem is that the framework is trying to convert your form data to an inadequate Java type (Generally into a String). So if your beans or actions have different types a conversion error is thrown. I fix this by creating my own personal converters and register them in the xwork-conversion.properties file. You should check this out: http://struts.apa
all parameters from {@link ActionContext#getParameters()} and sets them on the value stack bycalling ValueStack#setValue(String, Object), typically resulting in the values submitted in a formrequest being applied to an action in the value stack.
Com Opensymphony Xwork2 Ognl Ognlvaluestack Error Setting Expression
Note that the parameter map must contain a String key andoften containers a
Interceptor-ref Name= Params
String[] for the value.The interceptor takes one parameter named 'ordered'. When set to true action properties are guaranteed to struts2 interceptor request parameters beset top-down which means that top action's properties are set first. Then it's subcomponents properties are set.The reason for this order is to enable a 'factory' pattern. For example, let's assume that http://stackoverflow.com/questions/9031889/struts2-conversion-warning one has an actionthat contains a property named modelClassthat allows to choose what is the underlying implementation of model.By assuring that modelClassproperty is set before any model properties are set, it's possible to choose modelimplementation during action.setModelClass()call. Similarly it's possible to use action.setPrimaryKey()property set call to actually load the model class from persistent storage. Without any assumption on parameterorder you have to use patterns like https://struts.apache.org/docs/parameters-interceptor.html Preparable Interface.Because parameter names are effectively OGNL statements, it is important that security be taken in to account.This interceptor will not apply any values in the parameters map if the expression contains an assignment (=),multiple expressions (,), or references any objects in the context (#). This is all done in the #acceptableName(String)method. In addition to this method, if the action being invoked implements theParameterNameAwareinterface, the action will be consulted to determine if the parameter should be set.In addition to these restrictions, a flag ( ReflectionContextState#DENY_METHOD_EXECUTION) is set such thatno methods are allowed to be invoked. That means that any expression such as person.doSomething()orperson.getName()will be explicitly forbidden. This is needed to make sure that your application is notexposed to attacks by malicious users.While this interceptor is being invoked, a flag ( ReflectionContextState#CREATE_NULL_OBJECTS) is turnedon to ensure that any null reference is automatically created - if possible. See the type conversion documentationand the InstantiatingNullHandlerjavadocs for more information.Finally, a third flag ( XWorkConverter#REPORT_CONVERSION_ERRORS) is set that indicates any errors whenconverting the the values to their final data type (String[] -> int) an unrecoverable error occurred. With thisflag set, the type conversion errors will be
【知识库】深度学习知识图谱上线啦 [@APPNAME@] WARN [http-8080-1] OgnlValueStack.warn(49) | Error setting value ognl.ExpressionSyntaxException: Malformed OGNL expr 标签: string 2010-01-15 09:01 4053人阅读 评论(8) 收藏 举报 本文章已收录于: 分类: Struts(5) 作者同类文章X 版权声明:本文为博主原创文章,未经博主允许不得转载。 [@APPNAME@] WARN [http-8080-1] OgnlValueStack.warn(49) | Error setting value ognl.ExpressionSyntaxException: Malformed OGNL expression: 402880f6262a958001262a9bdd8a0003 [ognl.ParseException: Encountered "6262" at line 1, column 8. Was expecting one of: