spring-mvc限制前端传递list参数的长度为256

最新推荐文章于 2023-01-09 11:57:10 发布

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#spring-mvc #IndexOutOfBoundsExce

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本文介绍了解决Spring MVC框架限制前端传递列表参数到后端的问题，通过调整DataBinder的默认设置，允许更大的列表长度。

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接收前端数据时发生如下错误：

org.springframework.beans.InvalidPropertyException: Invalid property 'cpaCpafCpnNewList[256]' of bean class [com.ufgov.entity.CpaCpafChgAttach]: Index of out of bounds in property path 'cpaCpafCpnNewList[256]'; nested exception is java.lang.IndexOutOfBoundsException: Index: 256, Size: 256
	at org.springframework.beans.BeanWrapperImpl.getPropertyValue(BeanWrapperImpl.java:832)
	at org.springframework.beans.BeanWrapperImpl.getNestedBeanWrapper(BeanWrapperImpl.java:571)
	at org.springframework.beans.BeanWrapperImpl.getBeanWrapperForPropertyPath(BeanWrapperImpl.java:548)
	at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:912)
	at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:82)
	at org.springframework.validation.DataBinder.applyPropertyValues(DataBinder.java:728)
	at org.springframework.validation.DataBinder.doBind(DataBinder.java:624)
	at org.springframework.web.bind.WebDataBinder.doBind(WebDataBinder.java:189)
	at org.springframework.web.bind.ServletRequestDataBinder.bind(ServletRequestDataBinder.java:106)
	at org.springframework.web.servlet.mvc.method.annotation.ServletModelAttributeMethodProcessor.bindRequestParameters(ServletModelAttributeMethodProcessor.java:153)
	at org.springframework.web.method.annotation.ModelAttributeMethodProcessor.resolveArgument(ModelAttributeMethodProcessor.java:108)
	at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:79)
	at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:157)
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:124)
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:689)
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:863)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at com.ufgov.util.LoginFilter.doFilter(LoginFilter.java:126)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at com.ufgov.util.CharacterFilter.doFilter(CharacterFilter.java:34)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
	at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2441)
	at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2430)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
	at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.IndexOutOfBoundsException: Index: 256, Size: 256
	at java.util.ArrayList.RangeCheck(ArrayList.java:547)
	at java.util.ArrayList.get(ArrayList.java:322)
	at org.springframework.beans.BeanWrapperImpl.getPropertyValue(BeanWrapperImpl.java:791)
	... 51 more

一看到256这个数字，就知道肯定是框架作祟。。。。。。

不知道为什么框架要做这样的限制。如下是限制的源头

public class DataBinder implements PropertyEditorRegistry, TypeConverter {

	/** Default object name used for binding: "target" */
	public static final String DEFAULT_OBJECT_NAME = "target";

	/** Default limit for array and collection growing: 256 */
	public static final int DEFAULT_AUTO_GROW_COLLECTION_LIMIT = 256;

百度一下，解决办法如下

在controller中重写如下方法：

    /**
     * 解决spring-mvc限制前端传递list参数到后端时,限制长度256
     * @param binder
     */
    @InitBinder
    protected void initBinder(WebDataBinder binder) {
        binder.setAutoGrowNestedPaths(true);
        binder.setAutoGrowCollectionLimit(1024);
    }

当然，如果controller有继承其它base的话，统一处理更好