公司新闻做网站,四平网站建设怎么选,长春网络推广公司哪个好,官方网站英语完成登录且优化#xff1a;
未优化做简单的判断#xff1a; 全部异常抓捕
优化#xff1a;返回的是json的格式 BusinessException#xff1a;所有的错误放到这个容器中#xff0c;全局异常从这个类中调用 BusinessException#xff1a; package com.lya.lyaspshop.exce…
完成登录且优化
未优化做简单的判断 全部异常抓捕
优化返回的是json的格式 BusinessException所有的错误放到这个容器中全局异常从这个类中调用 BusinessException package com.lya.lyaspshop.exception;import com.lya.lyaspshop.resp.JsonResponseStatus;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.NoArgsConstructor;EqualsAndHashCode(callSuper true)//自动生成equals和hashCode方法
AllArgsConstructor//自动生成全参构造函数
NoArgsConstructor//自动生成无参构造函数
Data//自动生成getters、setters、toString
public class BusinessException extends RuntimeException {// 所有的错误放到这个容器中全局异常从这个类中调用private JsonResponseStatus jsonResponseStatus;} GlobalExceptionHandler package com.lya.lyaspshop.exception;import com.lya.lyaspshop.resp.JsonResponseBody;
import com.lya.lyaspshop.resp.JsonResponseStatus;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;RestControllerAdvice//用于声明这个类是一个全局异常处理器
Slf4j
public class GlobalExceptionHandler {// 已知错误ExceptionHandler(BusinessException.class)//声明这是一个异常处理方法public JsonResponseBody? exceptionBusinessException(BusinessException e) {JsonResponseStatus status e.getJsonResponseStatus();log.info(status.getMsg());//使用日志打印异常的消息。return JsonResponseBody.other(status);}// 未知错误ExceptionHandler(Throwable.class)public JsonResponseBody? exceptionThrowable(Throwable e) {log.info(e.getMessage());//使用日志打印异常的消息。return JsonResponseBody.other(JsonResponseStatus.UN_KNOWN);}
} 这里为啥要写这两个类 理解编写 GlobalExceptionHandler 类可以集中处理应用程序中的各种异常提高代码的可维护性同时简化了代码 jsr303 //这里体现了为啥要建这个类1.降低代码耦合度VO 实体类可以将数据从数据库实体类中解耦 2.用户进行权限校验等操作业务逻辑与数据访问层分离开来提高代码的可读性和可维护性
如果我直接在数据库的实体类中去 !-- jsr303 --
dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-validation/artifactId
/dependency 实体使用注解
NotBlank 抛一个异常 报错信息 这个是时候错误已经该变 连接日志查看 遇到一个问题这里就是异常就是使用的303自己带的异常不要写其他的 前后台的加密过程
从前台发送请求来
引入加密js script srchttp://www.gongjuji.net/Content/files/jquery.md5.js typetext/javascript/script加密成功 加密后数据库的原密码肯定是不对的了。这我们使用debug给截取到密码存入数据库中。 集成redis !-- redis--dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-data-redis/artifactId/dependency RedisServiceImpl package com.lya.lyaspshop.service.impl;import com.lya.lyaspshop.pojo.User;
import com.lya.lyaspshop.service.IRedisService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;import java.util.concurrent.TimeUnit;Service
public class RedisServiceImpl implements IRedisService {Autowiredprivate RedisTemplateString, Object redisTemplate;// 往redis设置Overridepublic void setUserToRedis(String token, User user) {redisTemplate.opsForValue().set(user: token, user, 7200, TimeUnit.SECONDS);}Overridepublic User getUserByToken(String token) {return (User) redisTemplate.opsForValue().get(user: token);}} IRedisService package com.lya.lyaspshop.service;import com.lya.lyaspshop.pojo.User;public interface IRedisService {/*** 将登陆User对象保存到Redis中并以Token为键*/void setUserToRedis(String token, User user);/*** 根据token令牌获取redis中存储的user对象*/User getUserByToken(String token);} redisService.setUserToRedis(token, one); 加入cookie
使用CookieUtils类 package com.lya.lyaspshop.utils;import lombok.extern.slf4j.Slf4j;import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;Slf4j
public class CookieUtils {/*** Description: 得到Cookie的值, 不编码*/public static String getCookieValue(HttpServletRequest request, String cookieName) {return getCookieValue(request, cookieName, false);}/*** Description: 得到Cookie的值*/public static String getCookieValue(HttpServletRequest request, String cookieName, boolean isDecoder) {Cookie[] cookieList request.getCookies();if (cookieList null || cookieName null) {return null;}String retValue null;try {for (int i 0; i cookieList.length; i) {if (cookieList[i].getName().equals(cookieName)) {if (isDecoder) {retValue URLDecoder.decode(cookieList[i].getValue(), UTF-8);} else {retValue cookieList[i].getValue();}break;}}} catch (UnsupportedEncodingException e) {e.printStackTrace();}return retValue;}/*** Description: 得到Cookie的值*/public static String getCookieValue(HttpServletRequest request, String cookieName, String encodeString) {Cookie[] cookieList request.getCookies();if (cookieList null || cookieName null) {return null;}String retValue null;try {for (int i 0; i cookieList.length; i) {if (cookieList[i].getName().equals(cookieName)) {retValue URLDecoder.decode(cookieList[i].getValue(), encodeString);break;}}} catch (UnsupportedEncodingException e) {e.printStackTrace();}return retValue;}/*** Description: 设置Cookie的值 不设置生效时间默认浏览器关闭即失效,也不编码*/public static void setCookie(HttpServletRequest request, HttpServletResponse response, String cookieName,String cookieValue) {setCookie(request, response, cookieName, cookieValue, -1);}/*** param request* param response* param cookieName* param cookieValue* param cookieMaxage* Description: 设置Cookie的值 在指定时间内生效,但不编码*/public static void setCookie(HttpServletRequest request, HttpServletResponse response, String cookieName,String cookieValue, int cookieMaxage) {setCookie(request, response, cookieName, cookieValue, cookieMaxage, false);}/*** Description: 设置Cookie的值 不设置生效时间,但编码* 在服务器被创建返回给客户端并且保存客户端* 如果设置了SETMAXAGE(int seconds)会把cookie保存在客户端的硬盘中* 如果没有设置会默认把cookie保存在浏览器的内存中* 一旦设置setPath()只能通过设置的路径才能获取到当前的cookie信息*/public static void setCookie(HttpServletRequest request, HttpServletResponse response, String cookieName,String cookieValue, boolean isEncode) {setCookie(request, response, cookieName, cookieValue, -1, isEncode);}/*** Description: 设置Cookie的值 在指定时间内生效, 编码参数*/public static void setCookie(HttpServletRequest request, HttpServletResponse response, String cookieName,String cookieValue, int cookieMaxage, boolean isEncode) {doSetCookie(request, response, cookieName, cookieValue, cookieMaxage, isEncode);}/*** Description: 设置Cookie的值 在指定时间内生效, 编码参数(指定编码)*/public static void setCookie(HttpServletRequest request, HttpServletResponse response, String cookieName,String cookieValue, int cookieMaxage, String encodeString) {doSetCookie(request, response, cookieName, cookieValue, cookieMaxage, encodeString);}/*** Description: 删除Cookie带cookie域名*/public static void deleteCookie(HttpServletRequest request, HttpServletResponse response,String cookieName) {doSetCookie(request, response, cookieName, null, -1, false);}/*** Description: 设置Cookie的值并使其在指定时间内生效*/private static final void doSetCookie(HttpServletRequest request, HttpServletResponse response,String cookieName, String cookieValue, int cookieMaxage, boolean isEncode) {try {if (cookieValue null) {cookieValue ;} else if (isEncode) {cookieValue URLEncoder.encode(cookieValue, utf-8);}Cookie cookie new Cookie(cookieName, cookieValue);if (cookieMaxage 0)cookie.setMaxAge(cookieMaxage);if (null ! request) {// 设置域名的cookieString domainName getDomainName(request);log.info( domainName: {} , domainName);if (!localhost.equals(domainName)) {cookie.setDomain(domainName);}}cookie.setPath(/);response.addCookie(cookie);} catch (Exception e) {e.printStackTrace();}}/*** Description: 设置Cookie的值并使其在指定时间内生效*/private static void doSetCookie(HttpServletRequest request, HttpServletResponse response,String cookieName, String cookieValue, int cookieMaxage, String encodeString) {try {if (cookieValue null) {cookieValue ;} else {cookieValue URLEncoder.encode(cookieValue, encodeString);}Cookie cookie new Cookie(cookieName, cookieValue);if (cookieMaxage 0)cookie.setMaxAge(cookieMaxage);if (null ! request) {// 设置域名的cookieString domainName getDomainName(request);log.info( domainName: {} , domainName);if (!localhost.equals(domainName)) {cookie.setDomain(domainName);}}cookie.setPath(/);response.addCookie(cookie);} catch (Exception e) {e.printStackTrace();}}/*** Description: 得到cookie的域名*/private static String getDomainName(HttpServletRequest request) {String domainName null;String serverName request.getRequestURL().toString();if (serverName null || serverName.equals()) {domainName ;} else {serverName serverName.toLowerCase();serverName serverName.substring(7);final int end serverName.indexOf(/);serverName serverName.substring(0, end);if (serverName.indexOf(:) 0) {String[] ary serverName.split(\\:);serverName ary[0];}final String[] domains serverName.split(\\.);int len domains.length;if (len 3 !isIp(serverName)) {// www.xxx.com.cndomainName . domains[len - 3] . domains[len - 2] . domains[len - 1];} else if (len 3 len 1) {// xxx.com or xxx.cndomainName . domains[len - 2] . domains[len - 1];} else {domainName serverName;}}return domainName;}public static String trimSpaces(String IP) {//去掉IP字符串前后所有的空格while (IP.startsWith( )) {IP IP.substring(1, IP.length()).trim();}while (IP.endsWith( )) {IP IP.substring(0, IP.length() - 1).trim();}return IP;}public static boolean isIp(String IP) {//判断是否是一个IPboolean b false;IP trimSpaces(IP);if (IP.matches(\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3})) {String s[] IP.split(\\.);if (Integer.parseInt(s[0]) 255)if (Integer.parseInt(s[1]) 255)if (Integer.parseInt(s[2]) 255)if (Integer.parseInt(s[3]) 255)b true;}return b;}}自定义注解
根据isNoblank去写
这三行代码必须写的 boolean require() default false;String expr() default ;String message() default ; IsMobile package com.lya.lyaspshop.core;import javax.validation.Constraint;
import javax.validation.Payload;
import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.RetentionPolicy.RUNTIME;Documented
Constraint(validatedBy {IsMobileConstraintValidator.class})
Target({FIELD})
Retention(RUNTIME)
public interface IsMobile {boolean require() default false;String expr() default ;String message() default ;Class?[] groups() default {};Class? extends Payload[] payload() default {};}IsMobileConstraintValidator package com.lya.lyaspshop.core;import com.baomidou.mybatisplus.core.toolkit.StringUtils;import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;/*** author CloudJun*/
public class IsMobileConstraintValidator implements ConstraintValidatorIsMobile, String {private boolean require;private String expr;Overridepublic void initialize(IsMobile isMobile) {expr isMobile.expr();require isMobile.require();}Overridepublic boolean isValid(String value, ConstraintValidatorContext context) {if (!require) return true;if (StringUtils.isEmpty(value)) return false;return value.matches(expr);}}优化定义一个常量类使用的定值往这里调用就行) package com.lya.lyaspshop.core;public abstract class Constants {// 常类public static final String EXPR_MOBILE (13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\\d{8};public static final String EXPR_PASSWORD [a-zA-Z0-9]{32};public static final String USER_TOKEN_PREFIX user:;}
