做网站用模版,网站 逻辑结构,WordPress 输入任意作者,建设网站一般需要多少钱变为负进度了#xff0c;还是要用baseservlet#xff0c;我就又重新写了一部分#xff0c;看了好几遍视频#xff0c;突然就想明白了#xff0c;感觉每次要上课#xff0c;就时间不连续思路总是断#xff0c;今天晚自习算是搞懂了怎么写了#xff0c;就是代码有点多还是要用baseservlet我就又重新写了一部分看了好几遍视频突然就想明白了感觉每次要上课就时间不连续思路总是断今天晚自习算是搞懂了怎么写了就是代码有点多写的有点慢一开始那个构架也挺难理解的对我来说 这是我cotroller类的代码注册部分
WebServlet(/register) // 定义Servlet的URL映射
MultipartConfig
public class RegisterController1 extends BaseServlet {SomeMethod someMethodnew SomeMethod();ReturnType(ResponseType.JSON)POST(value AddUser)public String AddUser(FormData(username) String username, FormData(password) String password, FormData(email) String email) throws IOException, NoSuchAlgorithmException {RegisterMethod registerMethodnew RegisterMethod();return registerMethod.AddUser(username,password,email);这是baseservlet部分 MultipartConfig
public class BaseServlet extends HttpServlet {Overrideprotected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {req.getQueryString();req.setCharacterEncoding(UTF-8);//用字符串记录发过来的请求包括很多很多String urireq.getRequestURI();String methodName new String(uri.substring(uri.lastIndexOf(/) 1)).toString(); // 从 URI 中提取方法名System.out.println(获得的方法methodName);Method methodnull;//通过反射获取被继承的类里面的所有方法Method[] methodsthis.getClass().getDeclaredMethods();//获取请求头方便及进行接下来的操作String contentType req.getContentType();ObjectMapper objectMappernew ObjectMapper();JsonNode jsonNode null;if (contentType ! null contentType.startsWith(multipart/form-data)){System.out.println(如果是文件就不进行改变);}else {
//处理JSON 数据部分jsonNode objectMapper.readTree(req.getReader());}for (Method method1 : methods){if(POST.equals(req.getMethod())){System.out.println(进入了POST请求获取到的方法名为:methodName);if(method1.getAnnotation(POST.class)null) {continue;}if(method1.getAnnotation(POST.class).value().equals(methodName)){System.out.println(进入了具体的方法里面);method method1;Parameter[] parameters method.getParameters();System.out.println(参数列表为: parameters.length)Object[] args new Object[parameters.length];for(int i0;iparameters.length; i){Annotation[] annotations parameters[i].getAnnotations();if(annotations null || annotations.length 0) {if (parameters[i].getType() HttpServletRequest.class) {args[i] req;} else if (parameters[i].getType() HttpServletResponse.class) {args[i] resp;}}else {for(Annotation annotation:annotations){if(annotation instanceof Param){String name((Param)annotation).value();args[i] request.getParameter(name);System.out.println(args[i]);方法类 public class SomeMethod {public User addUser(String UserName, String Email, String Password) throws IOException {//新增账号User user new User();user.setUserName(UserName);user.setEmail(Email);user.setPassword(Password);//1.获取SqlSessionFactory//1.加载mybatis的核心配置文件获取SqlSessionFaxtoryString resource mybatis-config.xml;InputStream inputStream Resources.getResourceAsStream(resource);SqlSessionFactory sqlSessionFactory new SqlSessionFactoryBuilder().build(inputStream);//2.获取SqlSession 对象用它来执行sqlSqlSession sqlSession sqlSessionFactory.openSession();//在这里面其实是可以写true或者false的没写为f表示要手动提交//3.1获取UserMapper接口的代理对象UserMapper userMapper sqlSession.getMapper((UserMapper.class));userMapper.add(user);//提交事务sqlSession.commit();//5.释放资源sqlSession.close();return user;}
