既然你提到使用 Tomcat 9，就试着分享我最近的经验.

Since you mentioned using Tomcat 9, attempting to share my recent experience.

最近我遇到了类似的问题.升级到 Tomcat 9.0.31 后，我的一个测试用例对大型 JSON(小于 2 MB)进行 POST 时开始随机失败:

Recently I ran into similar issue. When upgraded to Tomcat 9.0.31, one of my test case which does a POST of a large JSON (little less than 2 MB) started failing randomly with:

JSON 解析错误:VALUE_STRING 中出现意外的输入结束；嵌套异常是 com.fasterxml.jackson.databind.JsonMappingException: Unexpected end-of-input in VALUE_STRING at [Source: (PushbackInputStream);行:1，列:17](通过参考链:com.abc.xyz ["str"]) - JSON 解析错误:VALUE_STRING 中的意外输入结束；嵌套异常是 com.fasterxml.jackson.databind.JsonMappingException: Unexpected end-of-input in VALUE_STRING at [Source: (PushbackInputStream);行:1，列:17](通过参考链:com.abc.xyz["str"])在

JSON parse error: Unexpected end-of-input in VALUE_STRING; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Unexpected end-of-input in VALUE_STRING at [Source: (PushbackInputStream); line: 1, column: 17] (through reference chain: com.abc.xyz ["str"]) - JSON parse error: Unexpected end-of-input in VALUE_STRING; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Unexpected end-of-input in VALUE_STRING at [Source: (PushbackInputStream); line: 1, column: 17] (through reference chain: com.abc.xyz["str"]) at

结果是 Tomcat 9.0.31 中存在导致此问题的错误.

Turns out that there was a bug in Tomcat 9.0.31 which caused this.

https://bz.apache.org/bugzilla/show_bug.cgi?id=64202

迁移到 Tomcat 9.0.33 解决了我的问题.

Moving to Tomcat 9.0.33 solved my issue.

您是否也在使用 Tomcat 9.0.31?

Are you also using Tomcat 9.0.31?