1、目的
异常统一管理，
精简代码
2、异常抛出工具类
import com.myfutech.common.util.exception.BusinessException;
import org.apache.commons.lang3.StringUtils;
import java.util.List;
/**
* 异常抛出工具类
*
*/
public class AssertUtils {
/**
* 不可为空
* 若参数为空，抛BusinessException
* @param param 单个字符串
* @param msg 异常信息
*/
public static void notBlank(String param, String msg) {
if (StringUtils.isBlank(param)) {
throw new BusinessException(msg);
}
}
/**
* 不可为空
* 若参数为空，抛BusinessException
* @param params 字符串数组
* @param msg 异常信息
*/
public static void notBlank(String[] params, String msg) {
for (String param : params) {
notBlank(param, msg);
}
}
/**
* 不可为null
* 若参数为null，抛BusinessException
* @param param 需判断obj
* @param msg 异常信息
*/
public static void notNull(Object param, String msg) {
if (null == param) {
throw new BusinessException(msg);
}
}
/**
* 集合不可为空，抛BusinessException
* @param list 集合
* @param msg 异常信息
*/
public static void notEmpty(List<?> list, String msg) {
if (list == null || list.size() == 0) {
throw new BusinessException(msg);
}
}
/**
* 校验数据是否为空
* @param date 入参
* @param msg 错误提示
* @return String为空 ? "" : msg
*/
public static String validNotBlank(String date, String msg) {
return StringUtils.isBlank(date) ? msg : "";
}
/**
* 校验数据是否为空
* @param obj 入参
* @param msg 错误提示
* @return obj为空 ? "" : msg
*/
public static String validNotNull(Object obj, String msg) {
return obj == null ? msg : "";
}
/**
* 校验数据是否为空
* @param list 入参
* @param msg 错误提示
* @return list为空 ? "" : msg
*/
public static String validNotEmpty(List<?> list, String msg) {
return list == null || list.size() == 0 ? msg : "";
}
/**
* 校验数据不能为false
* @param date 入参
* @param msg 错误提示
* @return list为空 ? "" : msg
*/
public static String validNotTrue(boolean date, String msg) {
return !date ? msg : "";
}
/**
* 不为true抛异常
* @param date 数据
* @param msg 错误信息
*/
public static void notTrue(boolean date, String msg) {
if (!date) {
throw new BusinessException(msg);
}
}
}
3、自定义异常类
import com.myfutech.common.util.Responses;
import com.myfutech.common.util.enums.ResponseCode;
/**
* 业务异常
*/
public class BusinessException extends RuntimeException{
private Responses responses;
public BusinessException() {
}
public BusinessException(String message) {
super(message);
this.responses = Responses.error(message);
}
public BusinessException(ResponseCode code, String message) {
super(message);
this.responses = Responses.error(code, message);
}
public BusinessException(Responses responses) {
super(responses.getMsg());
this.responses = responses;
}
public BusinessException(String message, Responses responses) {
super(message);
assert responses != null;
this.responses = responses;
}
public BusinessException(String message, Throwable cause) {
super(message, cause);
}
public BusinessException(String message, Throwable cause, Responses responses) {
super(message, cause);
assert responses != null;
this.responses = responses;
}
public BusinessException(Throwable cause) {
super(cause);
}
public BusinessException(Throwable cause, Responses responses) {
super(cause);
assert responses != null;
this.responses = responses;
}
public Responses getResponses() {
return responses;
}
}
