tanghc
4 years ago
parent
31202908a4
commit
3804bf33a7
@ -0,0 +1,15 @@ |
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package com.gitee.sop.gatewaycommon.manager; |
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import com.gitee.sop.gatewaycommon.bean.InstanceDefinition; |
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import com.gitee.sop.gatewaycommon.route.RegistryEvent; |
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import java.util.List; |
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/** |
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* @author tanghc |
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*/ |
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public interface InstanceManager extends RegistryEvent { |
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List<InstanceDefinition> listInstance(String serviceId); |
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} |
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@ -0,0 +1,86 @@ |
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package com.gitee.sop.servercommon.exception; |
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import com.alibaba.fastjson.JSON; |
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import com.gitee.sop.servercommon.bean.ServiceConfig; |
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import com.gitee.sop.servercommon.result.ServiceResultBuilder; |
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import lombok.extern.slf4j.Slf4j; |
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import org.springframework.web.util.UriUtils; |
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import javax.servlet.http.HttpServletRequest; |
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import javax.servlet.http.HttpServletResponse; |
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import java.nio.charset.StandardCharsets; |
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/** |
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* @author tanghc |
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*/ |
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@Slf4j |
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public class ExceptionHolder { |
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/** |
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* 与网关约定好的状态码，表示业务出错 |
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*/ |
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private static final int BIZ_ERROR_CODE = 4000; |
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/** |
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* 与网关约定好的系统错误状态码 |
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*/ |
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private static final int SYSTEM_ERROR_CODE = 5050; |
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/** |
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* header中的错误code |
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*/ |
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private static final String X_SERVICE_ERROR_HEADER_NAME = "x-service-error-code"; |
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/** |
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* header中的错误信息 |
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*/ |
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private static final String X_SERVICE_ERROR_MESSAGE = "x-service-error-message"; |
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/** |
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* header中的返回信息 |
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*/ |
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private static final String X_SERVICE_ERROR_RESPONSE = "x-service-error-response"; |
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/** |
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* 处理微服务异常信息，做到不与原系统的错误处理相冲突 |
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* @param request request |
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* @param response response |
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* @param exception exception |
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*/ |
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public static void hold(HttpServletRequest request, HttpServletResponse response, Exception exception) { |
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log.error("系统错误", exception); |
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int code = exception instanceof ServiceException ? BIZ_ERROR_CODE : SYSTEM_ERROR_CODE; |
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// 需要设置两个值，这样网关会收到错误信息
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// 并且会统计到监控当中
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response.setHeader(X_SERVICE_ERROR_HEADER_NAME, String.valueOf(code)); |
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String responseBody = buildResponse(request, response, exception); |
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response.setHeader(X_SERVICE_ERROR_RESPONSE, UriUtils.encode(responseBody, StandardCharsets.UTF_8)); |
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// 如果是未知错误，还需要收集异常信息
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if (code == SYSTEM_ERROR_CODE) { |
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StringBuilder msg = new StringBuilder(); |
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msg.append(exception.getMessage()); |
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StackTraceElement[] stackTrace = exception.getStackTrace(); |
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// 取5行错误内容
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int lineCount = 5; |
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for (int i = 0; i < stackTrace.length && i < lineCount; i++) { |
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StackTraceElement stackTraceElement = stackTrace[i]; |
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msg.append("\n at ").append(stackTraceElement.toString()); |
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} |
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response.setHeader(X_SERVICE_ERROR_MESSAGE, UriUtils.encode(msg.toString(), StandardCharsets.UTF_8)); |
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} |
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} |
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/** |
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* 处理异常 |
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* |
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* @param request request |
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* @param response response |
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* @param exception 异常信息 |
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* @return 返回最终结果 |
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*/ |
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private static String buildResponse(HttpServletRequest request, HttpServletResponse response, Exception exception) { |
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ServiceResultBuilder serviceResultBuilder = ServiceConfig.getInstance().getServiceResultBuilder(); |
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Object result = serviceResultBuilder.buildError(request, response, exception); |
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return JSON.toJSONString(result); |
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} |
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} |
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@ -1,4 +1,5 @@ |
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# 错误配置 |
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# \u9519\u8BEF\u914D\u7F6E |
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isp.error_isp.unknown-error=Service is temporarily unavailable |
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isp.error_isp.service-unknown-error=Service not unavailable |
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isp.error_isv.invalid-parameter=Invalid parameter |
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isp.error_isv.common-error=Service error |
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@ -1,5 +1,6 @@ |
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# 错误配置 |
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# \u9519\u8BEF\u914D\u7F6E |
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isp.error_isp.unknown-error=\u670d\u52a1\u6682\u4e0d\u53ef\u7528 |
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# 参数无效 |
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isp.error_isv.invalid-parameter=\u53c2\u6570\u65e0\u6548 |
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isp.error_isp.service-unknown-error=\u672A\u77E5\u9519\u8BEF |
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# \u53C2\u6570\u65E0\u6548 |
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isp.error_isv.invalid-parameter=\u53C2\u6570\u65E0\u6548 |
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isp.error_isv.common-error=\u7CFB\u7EDF\u9519\u8BEF |
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@ -0,0 +1,48 @@ |
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package com.gitee.sop.storyweb; |
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import com.gitee.sop.servercommon.exception.ExceptionHolder; |
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import com.gitee.sop.servercommon.exception.ServiceException; |
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import lombok.AllArgsConstructor; |
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import lombok.Data; |
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import lombok.extern.slf4j.Slf4j; |
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import org.springframework.web.bind.annotation.ControllerAdvice; |
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import org.springframework.web.bind.annotation.ExceptionHandler; |
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import org.springframework.web.bind.annotation.ResponseBody; |
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import javax.servlet.http.HttpServletRequest; |
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import javax.servlet.http.HttpServletResponse; |
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/** |
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* 全局异常处理 |
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* |
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* @author tanghc |
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*/ |
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@ControllerAdvice |
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@Slf4j |
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public class StoryGlobalExceptionHandler { |
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/** |
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* 捕获手动抛出的异常 |
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* |
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* @param request request |
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* @param response response |
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* @param exception 异常信息 |
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* @return 返回提示信息 |
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*/ |
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@ExceptionHandler(Exception.class) |
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@ResponseBody |
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public Object exceptionHandler(HttpServletRequest request, HttpServletResponse response, Exception exception) { |
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// 在返回前加这一句
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ExceptionHolder.hold(request, response, exception); |
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// 下面可以实现自己的全局异常处理
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return new ErrorResult(500, exception.getMessage()); |
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} |
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@Data |
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@AllArgsConstructor |
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public static class ErrorResult { |
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private int code; |
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private String msg; |
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} |
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} |
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@ -0,0 +1,27 @@ |
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package com.gitee.sop.gateway.mapper; |
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import org.apache.ibatis.annotations.Insert; |
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import org.apache.ibatis.annotations.Mapper; |
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import org.apache.ibatis.annotations.Param; |
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import org.apache.ibatis.annotations.ResultType; |
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import org.apache.ibatis.annotations.Select; |
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/** |
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* @author tanghc |
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*/ |
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@Mapper |
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public interface SystemLockMapper { |
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/** |
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* 插入唯一值 |
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* @param content 唯一值 |
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* @return 1：返回成功，0：插入失败 |
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*/ |
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@Insert("INSERT IGNORE INTO system_lock(content) VALUES (#{content})") |
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@ResultType(int.class) |
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int insert(@Param("content") String content); |
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@Select("SELECT id FROM system_lock WHERE id=1 FOR UPDATE") |
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@ResultType(long.class) |
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long lock(); |
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} |
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@ -0,0 +1,19 @@ |
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从之前版本升级到4.4.0必须看，如果直接从4.4.0开始使用，不用看。 |
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- 首先执行升级脚本 |
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```sql |
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use sop; |
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CREATE TABLE `system_lock` ( |
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`id` bigint(20) unsigned NOT NULL AUTO_INCREMENT, |
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`content` varchar(64) NOT NULL DEFAULT '', |
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PRIMARY KEY (`id`), |
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UNIQUE KEY `uk_content` (`content`) USING BTREE |
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) ENGINE=InnoDB DEFAULT CHARSET=utf8; |
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INSERT INTO `system_lock` (`id`, `content`) VALUES (1,'lock'); |
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``` |
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类`com.gitee.sop.servercommon.configuration.GlobalExceptionHandler`已被废弃，替代方案改用自己的全局异常处理 |
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参考：`com.gitee.sop.storyweb.StoryGlobalExceptionHandler`。这样改的目的是对于老项目的全局异常无入侵。 |
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