无法发布具有许多(超过256个)值的表单 [英] Can not post form with many (over 256) values

问题描述

我在Thymeleaf上使用Spring Boot 1.2.2. 我的问题是我尝试以表格形式发布一长列的项目(一些标签，一个复选框)，但无法执行列表中的许多项目. (我测试了小列表，但效果很好.)

I am using Spring Boot 1.2.2 with Thymeleaf. My Problem is I try to post a long list of Items (some labels, one checkbox) in a form, which cant be perform so many items of my list. (I tested small lists and it worked.)

首先，我使用码头，但遇到了一个错误，提示:

First I used jetty but got an error, which says:

java.lang.IllegalStateException: Form too many keys
at org.eclipse.jetty.util.UrlEncoded.decodeUtf8To(UrlEncoded.java:526)

我搜索并看到了此帖子.结果，我添加了

I searched and saw this post. As the result I added

applicationDefaultJvmArgs = ["-Dorg.eclipse.jetty.server.Request.maxFormKeys=8000"]

到我的gradle.build，但是没有成功.结果，我切换到Tomcat，它再次失败.错误消息是:

to my gradle.build, but it didnt work out. As the result I switched to Tomcat and it fails again. The errormessage is:

java.lang.IndexOutOfBoundsException: Index: 256, Size: 256
at java.util.ArrayList.rangeCheck(ArrayList.java:635)

看起来只能执行256个条目.我有大约500个条目.因此，我认为增加maxhttpheadersize会有所帮助，并将此行添加到我的application.properties:

looks like it can only perform 256 entries. I have about 500 entries. So I thought increasing the maxhttpheadersize would help and added this line to my application.properties:

server.tomcat.max-http-header-size=-1

(-1为无限制)我以Thymeleaf形式设置method ="post".还有其他方法可以增加256个限制吗?我不想对我的结果进行分页.感谢您的帮助.

(-1 as no limit) I set method="post" in my Thymeleaf form. Any other way to increase the 256 limit ? I dont want to paginate my result. Thanks for any help.

推荐答案

我认为这与Spring中的AutoGrowCollectionLimit有关，请尝试在控制器中包括此代码以增加它:

I think this is related to AutoGrowCollectionLimit in Spring, try to include this code in your controller in order to increase it:

@InitBinder
public void initBinder(WebDataBinder binder) {
    binder.setAutoGrowCollectionLimit(768);
}

在Spring论坛中检查此线程，也在官方文档中

Check this thread in Spring forum, also in the official documentation here.

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