springboot秒杀课程学习整理1-3
1）实现手机验证码功能，用户注册功能，用户登入功能（这里讲开发流程，及本人遇到的问题，具体实现请看代码）
1、拦截请求，获取请求参数（这里的consumes是个常量，可以定义在baseController里）
@RequestMapping(value="/register",method={RequestMethod.POST},consumes = {CONTENT_TYPE_FORMED})
@RequestParam(name="telphone")String telphone, @RequestParam(name="otpCode")String otpCode, @RequestParam(name="name")String name, @RequestParam(name="gender")String gender,//性别 @RequestParam(name="age")Integer age, @RequestParam(name="password")String password
2、使用传入的参数创建userModel对象，调用userService，将userModel转成userDO对象，使用userDOMapper插入数据库
注意：此处有部分细节，需注意如使用userId查userPassword的那个表需要自定义，以及通过手机号查userInfo表也需要自定义，在最后一章我
会把库的地址贴上
2）1、使用hibernate.validator对userModel进行校验
【1】 创建存放校验信息的类ValidationResult
【2】创建一个用于校验的类ValidateImpl，提供方法返回校验信息的方法，里面包括校验的具体实现
2、密码使用md5加密存入数据库
下面是代码详情：
UserController
package com.miaoshaproject.controller; import com.alibaba.druid.util.StringUtils; import com.miaoshaproject.controller.viewobject.UserVO; import com.miaoshaproject.error.BusinessException; import com.miaoshaproject.error.EmBusinessError; import com.miaoshaproject.response.CommonReturnType; import com.miaoshaproject.service.impl.UserServiceImpl; import com.miaoshaproject.service.model.UserModel; import org.apache.tomcat.util.security.MD5Encoder; import org.springframework.beans.BeanUtils; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.*; import sun.misc.BASE64Encoder; import javax.servlet.http.HttpServletRequest; import java.io.UnsupportedEncodingException; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import java.util.Random; @RestController @RequestMapping("/user") @CrossOrigin(allowCredentials = "true",allowedHeaders = "*")//在跨域的情况下session是不支持共享的，前端也需要设置xhrFields:{widthCredentials:true} public class UserController extends BaseController{ @Autowired private UserServiceImpl userService; @Autowired private HttpServletRequest httpServletRequest; @RequestMapping("/getuser") @ResponseBody public CommonReturnType getUserById(@RequestParam(name="id")Integer id)throws BusinessException{ UserVO userVO=new UserVO(); UserModel userModel=userService.getUserById(id); if(userModel == null){ throw new BusinessException(EmBusinessError.USER_NOT_EXIST); } UserVO obj=converUserVOFromUserModel(userModel); return CommonReturnType.create(obj); } public UserVO converUserVOFromUserModel(UserModel userModel){ UserVO userVO=new UserVO(); BeanUtils.copyProperties(userModel,userVO); return userVO; } //用户获取opt短信验证码 @RequestMapping(value="/getotp",method={RequestMethod.POST},consumes = {CONTENT_TYPE_FORMED}) @ResponseBody public CommonReturnType getOtp(@RequestParam(name="telphone")String telphone){ //需要按照一定规则生成otp验证码 Random random=new Random(); int randomInt=random.nextInt(99999); randomInt += 10000; String otpCode=String.valueOf(randomInt); //将opt验证码同对应手机号关联，redis可用于分布式， // 这里使用httpsession的方式绑定手机号和code this.httpServletRequest.getSession().setAttribute(telphone,otpCode); //将opt验证码通过短信通道发送给用户, // 这里省略使用控制台的方式打印code码,在企业里开发这种做法是不允许的， // 这些是敏感信息 System.out.println("telphone = " + telphone + "& otpCode = " + otpCode); return CommonReturnType.create(null); } //用户登入功能 @RequestMapping(value="/login",method={RequestMethod.POST},consumes = {CONTENT_TYPE_FORMED}) @ResponseBody public CommonReturnType login(@RequestParam(name="telphone")String telphone, @RequestParam(name="password")String password) throws BusinessException, UnsupportedEncodingException, NoSuchAlgorithmException { //入参校验 if(StringUtils.isEmpty(telphone)|| StringUtils.isEmpty(password)){ throw new BusinessException(EmBusinessError.PARAMTER_VALIDATION_ERROR); } //验证登入是否合法 UserModel userModel = userService.validateLogin(telphone, this.EncodeByMd5(password)); //添加登入成功的session this.httpServletRequest.getSession().setAttribute("IS_LOGIN",true); this.httpServletRequest.getSession().setAttribute("LOGIN_USER",userModel); return CommonReturnType.create(null); } //用户注册功能 @RequestMapping(value="/register",method={RequestMethod.POST},consumes = {CONTENT_TYPE_FORMED}) @ResponseBody public CommonReturnType register(@RequestParam(name="telphone")String telphone, @RequestParam(name="otpCode")String otpCode, @RequestParam(name="name")String name, @RequestParam(name="gender")String gender,//性别 @RequestParam(name="age")Integer age, @RequestParam(name="password")String password ) throws BusinessException, UnsupportedEncodingException, NoSuchAlgorithmException { //验证手机号和对应的otpcode相符合 String inSesstionOtpCode=(String)this.httpServletRequest.getSession().getAttribute(telphone); if(!com.alibaba.druid.util.StringUtils.equals(otpCode,inSesstionOtpCode)){ throw new BusinessException(EmBusinessError.PARAMTER_VALIDATION_ERROR,"短信验证码错误"); } //用户的注册流程 UserModel userModel=new UserModel(); userModel.setName(name); userModel.setGender(gender); userModel.setAge(age); userModel.setTelphone(telphone); userModel.setRegisterMode("byphone"); userModel.setEnCrptPassword(this.EncodeByMd5(password)); userService.register(userModel); return CommonReturnType.create(null); } //md5的加密计算 //java自带的md5只支持16位 public String EncodeByMd5(String str) throws NoSuchAlgorithmException, UnsupportedEncodingException { //确定计算方法 MessageDigest md5 = MessageDigest.getInstance("MD5"); BASE64Encoder base64en= new BASE64Encoder(); String newStr =base64en.encode(md5.digest(str.getBytes("utf-8"))); return newStr; } }
UserServiceIpml
package com.miaoshaproject.service.impl; import com.alibaba.druid.util.StringUtils; import com.miaoshaproject.dao.UserDOMapper; import com.miaoshaproject.dao.UserPasswordDOMapper; import com.miaoshaproject.dataobject.UserDO; import com.miaoshaproject.dataobject.UserPasswordDO; import com.miaoshaproject.error.BusinessException; import com.miaoshaproject.error.EmBusinessError; import com.miaoshaproject.service.UserService; import com.miaoshaproject.service.model.UserModel; import com.miaoshaproject.validator.ValidationResult; import com.miaoshaproject.validator.ValidatorImpl; import org.springframework.beans.BeanUtils; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.dao.DuplicateKeyException; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; @Service public class UserServiceImpl implements UserService { @Autowired private UserDOMapper userDOMapper; @Autowired private UserPasswordDOMapper userPasswordDOMapper; @Autowired private ValidatorImpl validator; @Override public UserModel getUserById(int id) { UserDO userDO=userDOMapper.selectByPrimaryKey(id); UserPasswordDO userPasswordDO=userPasswordDOMapper.selectByUserId(id); return converFromUserDO(userDO,userPasswordDO); } public UserModel converFromUserDO (UserDO userDO,UserPasswordDO userPasswordDO){ UserModel userModel=new UserModel(); if(userDO==null){ return null; } BeanUtils.copyProperties(userDO,userModel); if(userPasswordDO != null){ userModel.setEnCrptPassword(userPasswordDO.getEncrptPassword()); } return userModel; } @Override @Transactional public void register(UserModel userModel) throws BusinessException { //这里需要严谨一些，对所有字段判断不为空 if(userModel == null){ throw new BusinessException(EmBusinessError.PARAMTER_VALIDATION_ERROR); } ValidationResult result=validator.validate(userModel); if(result.isHasError()){ throw new BusinessException(EmBusinessError.PARAMTER_VALIDATION_ERROR,result.getErrMsg()); } //这里需要注意的点是在数据库里设置索引手机号是唯一的 try{ UserDO userDO=convertFromModel(userModel); userDOMapper.insertSelective(userDO); }catch(DuplicateKeyException ex){ throw new BusinessException(EmBusinessError.PARAMTER_VALIDATION_ERROR,"手机号已重复注册"); } UserDO newUserDO=userDOMapper.selectByTelphone(userModel.getTelphone()); userModel.setId(newUserDO.getId()); UserPasswordDO userPasswordDO=convertPasswordFormUserModel(userModel); userPasswordDOMapper.insertSelective(userPasswordDO); return; } private UserPasswordDO convertPasswordFormUserModel(UserModel userModel){ if(userModel==null){ return null; } UserPasswordDO userPasswordDO=new UserPasswordDO(); userPasswordDO.setEncrptPassword(userModel.getEnCrptPassword()); userPasswordDO.setUserId(userModel.getId()); return userPasswordDO; } private UserDO convertFromModel(UserModel userModel){ if(userModel == null){ return null; } UserDO userDO = new UserDO(); BeanUtils.copyProperties(userModel,userDO); return userDO; } //登入是否合法 @Override public UserModel validateLogin(String telphone, String password) throws BusinessException { //通过手机获取用户信息，新增查询方式通过手机来获取用户信息 UserDO userDO=userDOMapper.selectByTelphone(telphone); if(userDO==null){ throw new BusinessException(EmBusinessError.PARAMTER_VALIDATION_ERROR,"用户不存在"); } UserPasswordDO userPasswordDO=userPasswordDOMapper.selectByUserId( userDO.getId()); //比对用户信息内加密的密码是否和传输进来的一致 if(!StringUtils.equals(userPasswordDO.getEncrptPassword(),password)){ throw new BusinessException(EmBusinessError.PARAMTER_VALIDATION_ERROR,"账号或密码不存在"); } UserModel userModel=converFromUserDO(userDO,userPasswordDO); return userModel; } }
ValidationResult
package com.miaoshaproject.validator; import org.springframework.beans.factory.InitializingBean; import org.springframework.stereotype.Component; import javax.validation.ConstraintViolation; import javax.validation.Validation; import javax.validation.Validator; import java.util.Set; @Component public class ValidatorImpl implements InitializingBean { //javax.validator private Validator validator; @Override public void afterPropertiesSet() throws Exception { //将hibernate validator通过工厂的初始化方式使其实例化 this.validator = Validation.buildDefaultValidatorFactory().getValidator(); } //事项校验方法返回校验结果 public ValidationResult validate(Object bean){ ValidationResult result=new ValidationResult(); Set<ConstraintViolation<Object>> constraintViolationsSet=validator.validate(bean); if(constraintViolationsSet.size()>0){ //有错误 result.setHasError(true); /*这里有报错说不支持7及以下的语言等级， * file->project strcture->module->选择resource上面的language level给为7以上的 * file->setting->compiler->java Compiler->将version改为7以上 * */ constraintViolationsSet.forEach(constraintViolation->{ String errMsg=constraintViolation.getMessage(); String propertyName=constraintViolation.getPropertyPath().toString(); result.getErrMsgMap().put(propertyName,errMsg); }); } return result; } }
ValidateImpl
package com.miaoshaproject.validator; import org.springframework.beans.factory.InitializingBean; import org.springframework.stereotype.Component; import javax.validation.ConstraintViolation; import javax.validation.Validation; import javax.validation.Validator; import java.util.Set; @Component public class ValidatorImpl implements InitializingBean { //javax.validator private Validator validator; @Override public void afterPropertiesSet() throws Exception { //将hibernate validator通过工厂的初始化方式使其实例化 this.validator = Validation.buildDefaultValidatorFactory().getValidator(); } //事项校验方法返回校验结果 public ValidationResult validate(Object bean){ ValidationResult result=new ValidationResult(); Set<ConstraintViolation<Object>> constraintViolationsSet=validator.validate(bean); if(constraintViolationsSet.size()>0){ //有错误 result.setHasError(true); /*这里有报错说不支持7及以下的语言等级， * file->project strcture->module->选择resource上面的language level给为7以上的 * file->setting->compiler->java Compiler->将version改为7以上 * */ constraintViolationsSet.forEach(constraintViolation->{ String errMsg=constraintViolation.getMessage(); String propertyName=constraintViolation.getPropertyPath().toString(); result.getErrMsgMap().put(propertyName,errMsg); }); } return result; } }
