使用assert的好处就是比较简介,不用加try catch就可以附加一些预期的提示信息,方便定位问题
import org.springframework.util.Assert;
public class Demo {
public static void main(String[] args) {
String location = null;
Assert.notNull(location, "Location must not be null");
System.out.println("location = [" + location + "]");
}
}
Output:
Exception in thread "main" java.lang.IllegalArgumentException: Location must not be null
at org.springframework.util.Assert.notNull(Assert.java:115)
at Demo.main(Demo.java:9)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)