事务钩子函数

原创已于 2023-04-20 09:43:16 修改 · 294 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#java #html #servlet

于 2023-03-31 10:48:49 首次发布

public class TransactionalSupport implements TransactionSynchronization {

private Supplier supplier;

public TransactionalSupport(Supplier supplier) {
this.supplier = supplier;
}

@Override
public void afterCommit() {
supplier.get();
}
}

//业务逻辑事务提交之后再执行日志操作
TransactionalSupport transactionalSupport = new TransactionalSupport(()-> {
    try {
         contextBean.doCommonLogAfterBusiness(finalMap);
    } catch (Exception e) {
         logger.error("日志保存失败,异常信息：{},入参：{},结果：{}",   e.getMessage(),                                         param, result);
         e.printStackTrace();
   }
       return null;
  });
           TransactionSynchronizationManager.registerSynchronization(transactionalSupport);

//mybatis 代码自动生成

https://www.cnblogs.com/lanomw/p/12426985.html

//java编译动态生成class文件

public class CompilerUtil {

    public static Class generateClass(String javaFilename, String packageName, String javaCode) throws Exception {

        JavaStringCompiler compiler = new JavaStringCompiler();

        String prefix = String.format("package %s;", packageName);

        Map<String, byte[]> map = compiler.compile(javaFilename + ".java", prefix + "\n" + javaCode);

        return compiler.loadClass(packageName + "." + javaFilename, map);
    }

    public static void main(String[] args) throws Exception {
        String teacherCode = "public class Teacher extends Person {\n" +
                "\n" +
                "    @Override\n" +
                "    public void sayHello() {\n" +
                "        System.out.println(\"My name is \" + getName() + \", I am a teacher\");\n" +
                "    }\n" +
                "}\n";

        Class teacherClass = generateClass("Teacher", "com.example.demo.classg", teacherCode);
        Person person = (Person) teacherClass.newInstance();
        person.setName("Tom");
        person.sayHello();
    }
}

实战：一键生成前后端代码，Mybatis-Plus代码生成器让我舒服了_公众号:方志朋的博客-优快云博客 GitHub - pengziliu/GitHub-code-practice: GitHub代码实战系列