运行上面的代码,我们会得到一个"Name for argument type [java.lang.Long] not available, and parameter name in"错误。 解决方法 出现这个错误的原因是我们在getMethod方法中错误地使用了Integer.class作为参数类型。Integer.class是一个java.lang.Integer类型的Class对象,而add方法接受的是int类型的参数。 要解决这...
而在parameter下又细分为：位置参数(Positional Parameters)、特殊参数(Special Parameters，如$#、$?)、...
int max(int a,int b)/*形参的类型在形参表中直接说明*/ { return (a>b?a:b);} 或 ...
java.lang.IllegalArgumentException: Name for argument of type [java.lang.Boolean] not specified, and parameter name information not found in class file either. at org.springframework.web.method.annotation.AbstractNamedValueMethodArgumentResolver.updateNamedValueInfo(AbstractNamedValueMethodArgumentResolver.ja...
Name for argument type [java.lang.String] not available, and parameter name information not found in class file either. 最近遇到个超级烦人的问题,eclipse下SpringMVC+Hibernate+JPA的框架下的开发,是个手机客户端的后台。 出问题的地方是一个测试类,用来测试api的。之前好好的,MLGJ,这两天突然不管用了,...
Parameters value Object synchronize ParameterAttributes Returns JniValueMarshalerState Remarks Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License. Applies t...
<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.11.0</version> <configuration> <parameters>true</parameters> </configuration> </plugin> spring-projects-issuesaddedstatus: feedback-providedFeedback has been providedand removedstatus: wa...
I was all in favour of throwing IllegalArgumentException for null parameters, until today, when I noticed the java.util.Objects.requireNonNull method in Java 7. With that method, instead of doing: if (param == null) { throw new IllegalArgumentException("param cannot be null."); } ...
In all cases, the argument was entirely ignored, and to check types you'd need to use isA(Class) to do a reflective, null-rejecting, instanceof-style check. However, two improvements happened that change this: Java 8 happily infers type arguments through parameters, so any() is much ...
0”计数）应该是：q.setParameter(0, val1);q.setParameter(1, val2);q.setParameter(2, val3);最好不要用这样的方法，用 q.setParameter("name1", val1);q.setParameter("name2", val2);q.setParameter("name3", val3);这个错误有点简单，但我看不到你的代码，首先想到的是这个。