【文章推荐】后台报错"Optional int parameter 'page' is present but cannot be translated into a null value due to being declared as a primitive type"

原文：后台报错"Optional int parameter 'page' is present but cannot be translated into a null value due to being declared as a primitive type"

前端传分页参数时候，后端报错，提示存在可选int参数 page ，但由于被声明为基元类型，因此无法转换为null值原因是后端获取前端传的参数接收给错了，改成 PathVariable接收即可两者区别： RequestParam和 PathVariable注解是用于从 request 中接收请求的，两个都可以接收参数，关键点不同的是 RequestParam是从 request 里面拿取值， ...

2021-06-09 10:22 0 4689 推荐指数：

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Optional int parameter 'pId' is present but cannot be translated into a null value due to being declared as a primitive type.

接口测试的时候遇到了一个问题，导致测试阻断了好久，在此记录，谨防忘记。具体报错如下： Optional int parameter 'pId' is present but cannot be translated into a null value due to being ...

Optional int parameter 'id' is present but cannot be translated into a null value due to being declared as a primitive type.

报错内容如下解决办法将 int 改成 Integer。 Integer 是基本数据类型 int 的包装类。int 的初值为 0，Ingeter 的初值为 null。一般情况下，尽量使用 Integer ，而不是 int。 ...

is present but cannot be translated into a null value due to being declared as a primitive type

解决办法：把基本类型改为对象，譬如此处将pageId的类型由int 改为Integer ...

java.lang.IllegalStateException: Optional int parameter 'id' is not present but cannot be translated into a null value due to being declared

SSM框架的项目在输入路径时忘记加?id=x 才导致的问题 ...

Optional int parameter 'id' is present but cannot be translated into a null value due to being decla

这个错误可以将参数由int改为Integer ...

Optional int parameter 'id' is present but cannot be translated into a null value due to being 错误

这个错误是因为java获取页面数据的时候，id值可能为空，而int的默认值为0，若想能够接受NULL的值，将int换成integer即可解决。遇到这个错误就是把参数int 改成Integer 大家以后在springmvc接受参数的时候，尽量不要使用基本数据类型，当然你一定要使用的话 ...

Optional int parameter 'time' is present but cannot be translated into a null value due to being decla

今天在操作redis的时候报了这个错：Optional int parameter 'time' is present but cannot be translated into a null value due to being decla 这句话意思：参数time存在，但是无法将其转为 ...

cannot be translated into a null value due to being declared as a primitive type. Consid

注意是参数传入的名称错误导致参数没有传递进入同时又是 long 导致了如上异常其实改成Long就没有问题了但是以后注意参数的名称对应关系是note ...

原文：后台报错"Optional int parameter 'page' is present but cannot be translated into a null value due to being declared as a primitive type"

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