SpringBoot构建电商基础秒杀项目总结
用户登录功能实现
1、UserController.java修改
//用户登录接口
@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.PARAMETER_VALIDATION_ERROR);
}
//用户登录服务，用来校验用户登录是否合法
//用户加密后的密码
UserModel userModel = userService.validateLogin(telphone, this.EncodeByMd5(password));
//将登陆凭证加入到用户登录成功的session内
this.httpServletRequest.getSession().setAttribute("IS_LOGIN", true);
this.httpServletRequest.getSession().setAttribute("LOGIN_USER", userModel);
return CommonReturnType.create(null);
}
2、UserDOMapper.xml
新加一个查询语句
<select id="selectByTelphone" resultMap="BaseResultMap">
select
<include refid="Base_Column_List" />
from user_info
where telphone = #{telphone,jdbcType=VARCHAR}
select>
3、UserDOMapper接口
UserDO selectByTelphone(String telphone);
4、UserService接口
/**
* @param telphone 用户注册手机
* @param encrptPassword 用户加密后的密码
* @return
* @throws BusinessException
*/
UserModel validateLogin(String telphone, String encrptPassword) throws BusinessException;
5、EmBusinessError枚举
public enum EmBusinessError implements CommonError{
//通用错误类型10001
PARAMETER_VALIDATION_ERROR(10001, "参数不合法"),
UNKNOWN_ERROR(10002,"未知错误"),
//20000开头为用户信息相关错误定义
USER_NOT_EXIST(20001, "用户不存在"),
//30000开头为用户登录相关错误定义
USER_LOGIN_FAIL(30001, "用户手机号或密码不正确");
;
6、UserServiceImpl.java
@Override
public UserModel validateLogin(String telphone, String encrptPassword) throws BusinessException {
//通过用户手机获取用户信息
UserDO userDO = userDOMapper.selectByTelphone(telphone);
if (userDO == null) {
throw new BusinessException(EmBusinessError.USER_LOGIN_FAIL);
}
UserPasswordDO userPasswordDO = userPasswordDOMapper.selectByUserId(userDO.getId());
UserModel userModel = convertFromDataObject(userDO, userPasswordDO);
//比对用户信息内加密的密码是否和传输进来的密码相匹配
if (!StringUtils.equals(encrptPassword, userModel.getEncrptPassword())) {
throw new BusinessException(EmBusinessError.USER_LOGIN_FAIL);
}
return userModel;
}
7、login.html 将login界面放入webstrom软件运行，才能解决跨域请求问题
<html>
<head>
<meta charset="UTF-8">
<link href="static/assets/global/plugins/bootstrap/css/bootstrap.min.css" rel="stylesheet" type="text/css"/>
<link href="static/assets/global/plugins/css/component.css" rel="stylesheet" type="text/css"/>
<link href="static/assets/admin/pages/css/login.css" rel="stylesheet" type="text/css"/>
<script src="static/assets/global/plugins/jquery-1.11.0.min.js" type="text/javascript">script>
<title>Titletitle>
head>
<body class="login">
<div class="content">
<h3 class="form-title">用户登录h3>
<div class="form-group">
<label class="control-label">手机号label>
<div>
<input class="form-control" type="text" placeholder="手机号" name="telphone" id="telphone"/>
div>
div>
<div class="form-group">
<label class="control-label">密码label>
<div>
<input class="form-control" type="password" placeholder="密码" name="password" id="password"/>
div>
div>
<div class="form-actions">
<button class="btn blue" id="login" type="submit">
登录
button>
<button class="btn green" id="register" type="submit">
注册
button>
div>
div>
body>
<script>
jQuery(document).ready(function () {
//绑定注册按钮的click事件用于跳转到注册页面
$("#register").on("click",function () {
window.location.href = "getotp.html";
});
//绑定登录按钮的click事件用于登录
$("#login").on("click",function () {
var telphone=$("#telphone").val();
var password=$("#password").val();
if (telphone==null || telphone=="") {
alert("手机号不能为空");
return false;
}
if (password==null || password=="") {
alert("密码不能为空");
return false;
}
//映射到后端@RequestMapping(value = "/login", method = {RequestMethod.POST}, consumes = {CONTENT_TYPE_FORMED})
$.ajax({
type:"POST",
contentType:"application/x-www-form-urlencoded",
url:"http://localhost:8090/user/login",
data:{
"telphone":telphone,
"password":password
},
//允许跨域请求
xhrFields:{
withCredentials:true},
success:function (data) {
if (data.status=="success") {
alert("登录成功");
}else {
alert("登录失败，原因为" + data.data.errMsg);
}
},
error:function (data) {
alert("登录失败，原因为"+data.responseText);
}
});
return false;
});
});
script>
html>
8、运行测试
优化校验规则
pom.xml
<dependency>
<groupId>org.hibernategroupId>
<artifactId>hibernate-validatorartifactId>
<version>5.2.4.Finalversion>
dependency>
对validator进行一个简单的封装
1、新建validator的目录
新建一个ValidationResult的类
ValidationResult.java
public class ValidationResult {
//校验结果是否有错
private boolean hasErrors = false;
//存放错误信息的map
private Map<String, String> errorMsgMap = new HashMap<>();
public boolean isHasErrors() {
return hasErrors;
}
public void setHasErrors(boolean hasErrors) {
this.hasErrors = hasErrors;
}
public Map<String, String> getErrorMsgMap() {
return errorMsgMap;
}
public void setErrorMsgMap(Map<String, String> errorMsgMap) {
this.errorMsgMap = errorMsgMap;
}
//实现通用的通过格式化字符串信息获取错误结果的msg方法
public String getErrMsg() {
return StringUtils.join(errorMsgMap.values().toArray(), ",");
}
}
新建一个ValidatorImpl的类
ValidatorImpl.java
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 {
private Validator validator;
//实现校验方法并返回校验结果
public ValidationResult validate(Object bean) {
final ValidationResult result = new ValidationResult();
Set<ConstraintViolation<Object>> constraintViolationSet = validator.validate(bean);
if (constraintViolationSet.size() > 0) {
//有错误
result.setHasErrors(true);
constraintViolationSet.forEach(constraintViolation ->{
String errMsg = constraintViolation.getMessage();
String propertyName = constraintViolation.getPropertyPath().toString();
result.getErrorMsgMap().put(propertyName, errMsg);
});
}
return result;
}
@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();
}
}
2、UserModel.java重新修改
import org.hibernate.validator.constraints.NotBlank;
import javax.validation.constraints.Max;
import javax.validation.constraints.Min;
import javax.validation.constraints.NotNull;
public class UserModel {
private Integer id;
@NotBlank(message = "用户名不能为空")
private String name;
@NotNull(message = "性别不能填写")
private Byte gender;
@NotNull(message = "年龄不能不填写")
@Min(value = 0, message = "年龄必须大于0岁")
@Max(value = 150, message = "年龄必须小于150岁")
private Integer age;
@NotBlank(message = "手机号不能为空")
private String telphone;
private String registerMode;
private Integer thirdPartyId;
@NotBlank(message = "密码不能为空")
private String encrptPassword;
//getset方法自行添加
}
3、UserServiceImpl.java
首先注入ValidatorImpl
@Autowired
private ValidatorImpl validator;
修改register方法：
@Override
@Transactional//声明事务
public void register(UserModel userModel) throws BusinessException {
//校验
if (userModel == null) {
throw new BusinessException(EmBusinessError.PARAMETER_VALIDATION_ERROR);
}
/*
if (StringUtils.isEmpty(userModel.getName())
|| userModel.getGender() == null
|| userModel.getAge() == null
|| StringUtils.isEmpty(userModel.getTelphone())) {
throw new BusinessException(EmBusinessError.PARAMETER_VALIDATION_ERROR);
}
*/
ValidationResult result = validator.validate(userModel);
if (result.isHasErrors()){
throw new BusinessException(EmBusinessError.PARAMETER_VALIDATION_ERROR,result.getErrMsg());
}
//实现model->dataobject方法
UserDO userDO = convertFromModel(userModel);
try {
//insertSelective相对于insert方法，不会覆盖掉数据库的默认值
userDOMapper.insertSelective(userDO);
}catch (DuplicateKeyException ex){
//手机号码出现唯一索引的异常
throw new BusinessException(EmBusinessError.PARAMETER_VALIDATION_ERROR,"手机号已重复注册");
}
userModel.setId(userDO.getId());
UserPasswordDO userPasswordDO = convertPasswordFromModel(userModel);
userPasswordDOMapper.insertSelective(userPasswordDO);
return;
}
4、重新运行
