SpringBoot前后端分离项目Controller接收前端传递的List集合时，超过256报IndexOutOfBoundsException异常

一、问题描述

在前后端调试接口时，后端Controller接受前端请求xxxRequest中包含List xxxList ,然而当xxxList超过256时，会报超过256报IndexOutOfBoundsException异常

1.1异常代码

org.springframework.beans.InvalidPropertyException: Invalid property 'detail[256]' of bean class [com.suning.asvp.mer.entity.InviteCooperationInfo]: Index of out of bounds in property path 'detail[256]'; nested exception is java.lang.IndexOutOfBoundsException: Index: 256, Size: 256
	at org.springframework.beans.BeanWrapperImpl.getPropertyValue(BeanWrapperImpl.java:833) ~[spring-beans-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.beans.BeanWrapperImpl.getNestedBeanWrapper(BeanWrapperImpl.java:576) ~[spring-beans-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.beans.BeanWrapperImpl.getBeanWrapperForPropertyPath(BeanWrapperImpl.java:553) ~[spring-beans-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:914) ~[spring-beans-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:76) ~[spring-beans-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.validation.DataBinder.applyPropertyValues(DataBinder.java:692) ~[spring-context-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.validation.DataBinder.doBind(DataBinder.java:588) ~[spring-context-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.web.bind.WebDataBinder.doBind(WebDataBinder.java:191) ~[spring-web-3.1.2.RELEASE.jar:3.1.2.RELEASE]
	at org.springframework.web.bind.ServletRequestDataBinder.bind(ServletRequestDataBinder.java:112) ~[spring-web-3.1.2.RELEASE.jar:3.1.2.RELEASE]

二、解决方案 2.1在controller中添加方法

    @InitBinder
    protected void initBinder(WebDataBinder binder) {
        binder.setAutoGrowNestedPaths(true);
        binder.setAutoGrowCollectionLimit(1024);
    }

如此便可解决超过256报IndexOutOfBoundsException异常