User user = userDao.selectById(userId); if(user ==null) { thrownewIllegalArgumentException("用户不存在."); } } 有没有感觉第一种判定非空的写法很优雅,第二种写法则是相对丑陋的 if {...} 代码块。那么神奇的 Assert.notNull 背后到底做了什么呢? 下面是 Assert 的部分源码: publicabstractclassA...
User user = userDao.selectById(userId); Assert.notNull(user,"用户不存在."); ... } @Test publicvoidtest2{ // 另一种写法 User user = userDao.selectById(userId); if(user == null) { thrownewIllegalArgumentException("用户不存在."); } } 有没有感觉第一种判定非空的写法很优雅,第二种...
二、方法展示import org.springframework.util.Assert;publicclassAssertTest{publicstaticvoidmain(String[] args){//这里一般为请求mapper.xml进行查询数据库，数据库返回为空 User user = null; Assert.notNull(user,"实体类user为空");//这里我们演示实体类的某个属性判断是否为空 User user1 = new ...
publicstaticvoidMyMethod(Type type, Type baseType){ Debug.Assert(type !=null,"Type parameter is null","Can't get object for null type");// Perform some processing.} Remarks By default, theDebug.Assertmethod works only in debug builds. Use theTrace.Assertmethod if you want to do assertio...
public ResponseStandard test(@Validated @RequestBody User user) { //通过用户名 查询用户 User user1 = getUser(user); Assert.notNull(user1, "用户不存在(Assert抛出)"); return ResponseStandard.successResponse("成功"); } User getUser(User user){ ...
Assert.notNull(sessionUser); rg.springframework.util.Assert Assert翻译为中文为"断言". 就是断定某一个实际的值就为自己预期想得到的,如果不一样就抛出异常.
In a single- or multithreaded Windows application, assert calls the Windows API to create a message box to display the message along with an OK button. When the user chooses OK, the program aborts immediately.When the application is linked with a debug version of the run-time libraries, ...
Assert::isNull(Configure::read('User')); $Session = Common::getComponent('Session'); $Session->del('User'); $Cookie = Common::getComponent('Cookie'); $Cookie->del('Auth.key'); Assert::isEmpty($Cookie->read('Auth.key'));
数据库返回为空User user=null;Assert.notNull(user,"实体类user为空");//这里我们演示实体类的某个属性判断是否为空User user1=newUser();Assert.notNull(user1.getName(),"用户名字为空");//这种情况就失效了,所以应用场景一般是判断查询出数据库的一些实体类或者字段String name="";Assert.notNull(name...
示例1: testGetTokenFromUser ▲点赞 3▼ importorg.junit.Assert;//导入方法依赖的package包/类@TestpublicvoidtestGetTokenFromUser()throwsException{ Mockito.when(userRepository.getToken("any")).thenReturn(null); Mockito.when(userRepository.getToken(null)).thenReturn(null); ...