JSR305Validator

String checkParams = ValidatorFactory.checkParams(quitBookingReqBean);

然后报：
because no Bean Validation provider could be found. Add a provider like …，添加下面依赖解决：

<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>5.2.4.Final</version>
</dependency>

然后接着报：javax.validation.ValidationException: HV000183: Unable to load ‘javax.el.ExpressionFactory’，最终添加下列依赖解决:

<dependency>
   <groupId>javax.el</groupId>
   <artifactId>javax.el-api</artifactId>
   <version>2.2.4</version>
</dependency>
<dependency>
   <groupId>org.glassfish.web</groupId>
   <artifactId>javax.el</artifactId>
   <version>2.2.4</version>
</dependency>

import java.util.HashMap;
import java.util.Map;
import java.util.Set;

import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import javax.validation.groups.Default;

import org.apache.commons.collections.CollectionUtils;

/**
 * 校验工具类
 * @author wdmcygah
 *
 */
public class ValidationUtils {

	private static Validator validator =  Validation.buildDefaultValidatorFactory().getValidator();
	
	public static <T> ValidationResult validateEntity(T obj){
		ValidationResult result = new ValidationResult();
		 Set<ConstraintViolation<T>> set = validator.validate(obj,Default.class);
		 if( CollectionUtils.isNotEmpty(set) ){
			 result.setHasErrors(true);
			 Map<String,String> errorMsg = new HashMap<String,String>();
			 for(ConstraintViolation<T> cv : set){
				 errorMsg.put(cv.getPropertyPath().toString(), cv.getMessage());
			 }
			 result.setErrorMsg(errorMsg);
		 }
		 return result;
	}
	
	public static <T> ValidationResult validateProperty(T obj,String propertyName){
		ValidationResult result = new ValidationResult();
		 Set<ConstraintViolation<T>> set = validator.validateProperty(obj,propertyName,Default.class);
		 if( CollectionUtils.isNotEmpty(set) ){
			 result.setHasErrors(true);
			 Map<String,String> errorMsg = new HashMap<String,String>();
			 for(ConstraintViolation<T> cv : set){
				 errorMsg.put(propertyName, cv.getMessage());
			 }
			 result.setErrorMsg(errorMsg);
		 }
		 return result;
	}
}

import java.util.Map;

/**
 * 校验结果
 * @author wdmcygah
 *
 */
public class ValidationResult {

	//校验结果是否有错
	private boolean hasErrors;
	
	//校验错误信息
	private Map<String,String> errorMsg;

	public boolean isHasErrors() {
		return hasErrors;
	}

	public void setHasErrors(boolean hasErrors) {
		this.hasErrors = hasErrors;
	}

	public Map<String, String> getErrorMsg() {
		return errorMsg;
	}

	public void setErrorMsg(Map<String, String> errorMsg) {
		this.errorMsg = errorMsg;
	}

	@Override
	public String toString() {
		return "ValidationResult [hasErrors=" + hasErrors + ", errorMsg="
				+ errorMsg + "]";
	}

}