今天在写一个测试代码的时候, junit突然报了这个错误, 百度了一下, 各种说法都有, 但是跟我的都不匹配

    private SqlSessionFactory factory = null;
    
    
    @Before
    private void init() throws IOException {
        // 1.创建SqlSessionFactoryBuilder对象
        SqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder();

        // 2.加载配置文件
        InputStream is = Resources.getResourceAsStream("Configuration.xml");

        // 3.创建SqlSessionFactory对象
        factory = builder.build(is);
    }

    @Test
    public void test1() throws IOException {

        // 4.创建SqlSession对象
        SqlSession session = factory.openSession();

        // 5.使用SqlSession对象执行查询,得到结果
        Book book = session.selectOne("findBookById", "a000Mm1WSnpoSjFIMVF4VE1LWEpKUT09");

        // 6.显示结果
        System.out.println(book);
        // 7.释放资源
        session.close();
    }

报的错误:

java.lang.Exception: No tests found matching [{ExactMatcher:fDisplayName=test1], {ExactMatcher:fDisplayName=test1(com.gongxm.test.MyTest)], {LeadingIdentifierMatcher:fClassName=com.gongxm.test.MyTest,fLeadingIdentifier=test1]] from org.junit.internal.requests.ClassRequest@946e09
    at org.junit.internal.requests.FilterRequest.getRunner(FilterRequest.java:40)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createFilteredTest(JUnit4TestLoader.java:77)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:68)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:43)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:444)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

后来发现, 原来是有一个测试方法写成了私有的:

    @Before
    private void init() throws IOException {
        // 1.创建SqlSessionFactoryBuilder对象
        SqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder();

        // 2.加载配置文件
        InputStream is = Resources.getResourceAsStream("Configuration.xml");

        // 3.创建SqlSessionFactory对象
        factory = builder.build(is);
    }

把这个方法改成公共的之后问题就解决了!

记录一下, 也为后人提供一下参考!