简单摘要 一个简单的执行者Executor

1 创建一个接口 使用泛型规范输入输出<T,E>

public interface TestExecutor<T, E> {
    T execute(String url, E params) throws Exception;
}

//对应的实现
public class SimpleTestExecutor implements TestExecutor<Boolean,String>{
    @Override
    public Boolean execute(String url, String params) throws Exception {
        System.out.println("url>>>" + url);
        System.out.println("params>>>" + params);
//        throw new NullPointerException("报错了！");
        return true;
    }
}public interf