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优化校验规则

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程序员小墨 2022-03-02 22:24:19 +08:00
parent 8c944e0d40
commit ef1fb1e815
6 changed files with 144 additions and 28 deletions
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48
README.md
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@ -14,28 +14,30 @@
### 层次结构（以User为例，自上向下）
| | 目录 | Java对象类型 | 说明 | 举例 |
|-------------------|-----------------------|---------------------------------|-------------------------------|------------------------------|
| **Controller层** | | | | |
| Controller | controller | 类 class | | controller.UserController |
| View Object | controller/viewobject | 类 class | 将用户Model转化为可供UI使用的View Object | controller.UserController |
| | | | | |
| **Service层** | 转换成业务模型 | | | |
| Service | service | 接口 interface | | service.UserService |
| ServiceImpl | service/impl | Service接口实现类 | 将DataObject组装成Model | service.impl.UserServiceImpl |
| Model | service/model | 类 class | 用户模型Model | service.model.UserModel |
| | | | | |
| **Dao层** | 对数据库的映射 | | | |
| Mapper | dao | 接口 interface | | dao.UserDOMapper |
| Mapping | resources/mapping | Mapper接口实现类 | xml格式；SQL语句 | mapping/UserDOMapper.xml |
| Data Object | dataobject | 类 class | | dataobject.UserDO |
| | | | | |
| **其他** | | | | |
| response | response | | 用于处理HTTP请求返回 | response.CommonReturnType |
| | | | | |
| **异常处理** | 用于返回错误信息 | | | |
| CommonError | error | 接口 interface | | error.CommonError |
| EmBusinessError | error | 枚举 enum & CommonError接口实现类 | | error.EmBusinessError |
| BusinessException | error | CommonError接口实现类 & 继承自Exception | | error.BusinessException |
| | 目录 | Java对象类型 | 说明 | 举例 |
| ----------------- | --------------------- | --------------------------------------- | ---------------------------------------- | ------------------------------- |
| **Controller层** | | | | |
| Controller | controller | 类 class | | controller.UserController |
| View Object | controller/viewobject | 类 class | 将用户Model转化为可供UI使用的View Object | controller.UserController |
| | | | | |
| **Service层** | 转换成业务模型 | | | |
| Service | service | 接口 interface | | service.UserService |
| ServiceImpl | service/impl | Service接口实现类 | 将DataObject组装成Model | service.impl.UserServiceImpl |
| Model | service/model | 类 class | 用户模型Model | service.model.UserModel |
| | | | | |
| **Dao层** | 对数据库的映射 | | | |
| Mapper | dao | 接口 interface | | dao.UserDOMapper |
| Mapping | resources/mapping | Mapper接口实现类 | xml格式；SQL语句 | mapping/UserDOMapper.xml |
| Data Object | dataobject | 类 class | | dataobject.UserDO |
| | | | | |
| **其他** | | | | |
| response | response | | 用于处理HTTP请求返回 | response.CommonReturnType |
| ValidationResult | validator | 类 class | Hibernate Validator 参数验证 | validator\ValidationResult.java |
| ValidatorImpl | validator | ValidationResult类实现类 | Hibernate Validator 参数验证 | validator\ValidatorImpl.java |
| | | | | |
| **异常处理** | 用于返回错误信息 | | | |
| CommonError | error | 接口 interface | | error.CommonError |
| EmBusinessError | error | 枚举 enum & CommonError接口实现类 | | error.EmBusinessError |
| BusinessException | error | CommonError接口实现类 & 继承自Exception | | error.BusinessException |
**Tips:** Model与Data Object并非完全一一对应，例如UserModel是由ServiceImpl将UserDO和UserPasswordDO组装而成的。

17
pom.xml
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@ -65,6 +65,13 @@
<artifactId>commons-lang3</artifactId>
<version>3.7</version>
</dependency>
<!--参数验证-->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>5.4.3.Final</version>
</dependency>
</dependencies>
<build>
@ -152,6 +159,16 @@
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>8</source>
<target>8</target>
</configuration>
</plugin>
</plugins>
</build>
<!--

16
src/main/java/com/cxyxiaomo/flashsale/service/impl/UserServiceImpl.java
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@ -8,6 +8,8 @@ import com.cxyxiaomo.flashsale.error.BusinessException;
import com.cxyxiaomo.flashsale.error.EmBusinessError;
import com.cxyxiaomo.flashsale.service.UserService;
import com.cxyxiaomo.flashsale.service.model.UserModel;
import com.cxyxiaomo.flashsale.validator.ValidationResult;
import com.cxyxiaomo.flashsale.validator.ValidatorImpl;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
@ -20,9 +22,13 @@ public class UserServiceImpl implements UserService {
@Autowired
private UserDOMapper userDOMapper;
@Autowired
private UserPasswordDOMapper userPasswordDOMapper;
@Autowired
private ValidatorImpl validator;
@Override
public UserModel getUserById(Integer id) {
// 调用UserDataObjectMapper获取到对应的用户DataObject
@ -60,11 +66,11 @@ public class UserServiceImpl implements UserService {
if (userModel == null) {
throw new BusinessException(EmBusinessError.PARAMETER_VALIDATION_ERROR);
}
if (StringUtils.isEmpty(userModel.getName())
|| userModel.getGender() == null
|| userModel.getAge() == null
|| StringUtils.isEmpty(userModel.getTelephone())) {
throw new BusinessException(EmBusinessError.PARAMETER_VALIDATION_ERROR);
// （优化校验规则）
ValidationResult result = validator.validate(userModel);
if (result.isHasErrors()) {
throw new BusinessException(EmBusinessError.PARAMETER_VALIDATION_ERROR, result.getErrMsg());
}
// 实现 model -> dataobject 方法

19
src/main/java/com/cxyxiaomo/flashsale/service/model/UserModel.java
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@ -1,14 +1,33 @@
package com.cxyxiaomo.flashsale.service.model;
import javax.validation.constraints.Max;
import javax.validation.constraints.Min;
import javax.validation.constraints.NotBlank;
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 = "姓名不能不填写")
private Byte gender;
@NotNull(message = "年龄不能不填写")
@Min(value = 0, message = "年龄必须大于0")
@Max(value = 150, message = "年龄必须小于150")
private Integer age;
@NotBlank(message = "手机号不能为空")
private String telephone;
private String registerMode;
private String thirdPartyId;
@NotBlank(message = "密码不能为空")
private String encryptPassword;
public Integer getId() {

35
src/main/java/com/cxyxiaomo/flashsale/validator/ValidationResult.java Normal file
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@ -0,0 +1,35 @@
package com.cxyxiaomo.flashsale.validator;
import org.apache.commons.lang3.StringUtils;
import java.util.HashMap;
import java.util.Map;
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> errMsgMap = new HashMap<>();
// 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(errMsgMap.values().toArray(), ",");
}
public boolean isHasErrors() {
return hasErrors;
}
public void setHasErrors(boolean hasErrors) {
this.hasErrors = hasErrors;
}
public Map<String, String> getErrMsgMap() {
return errMsgMap;
}
public void setErrMsgMap(Map<String, String> errMsgMap) {
this.errMsgMap = errMsgMap;
}
}

37
src/main/java/com/cxyxiaomo/flashsale/validator/ValidatorImpl.java Normal file
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@ -0,0 +1,37 @@
package com.cxyxiaomo.flashsale.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 {
private Validator validator;
// 实现校验方法并返回校验结果
public ValidationResult validate(Object bean) {
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.getErrMsgMap().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 = (Validator) Validation.buildDefaultValidatorFactory().getValidator();
}
}