problems_microservice
- problems_microservice
- 1 seata报错1
- 2 seata报错2
- 3 seata报错4
- 4 seata报错5
- 5 seata报错6
- 6 springboot启动报错Service id not legal hostname
- 7 springboot启动报错
- 8 seata事务不生效
- 9 gateway的过滤器（继承GlobalFilter）中使用openFeign报错
- 10 skywalking的gateway插件版本不对不兼容
- 11 springboot微服务启动报错，无法连接到nacos
- 12 springboot启动时无法加载skywalking插件
- 13 springboot启动报错 No Feign Client for loadBalancing defined
- 14
- 15
- 16
problems_microservice
1 seata报错1
2021-12-02 13:33:31.529 INFO --- io.seata.spring.annotation.datasource.SeataAutoDataSourceProxyCreator.getAdvicesAndAdvisorsForBean[45]: Auto proxy of [dataSource]
Property 'mapperLocations' was not specified.
2021-12-02 13:33:33.857 ERROR --- io.seata.core.rpc.netty.NettyClientChannelManager.reconnect[164]: Failed to get available servers: endpoint format should like ip:port
java.lang.IllegalArgumentException: endpoint format should like ip:port
RCA: （不对，这个RCA是错误的！）
yaml文件中，没有配置driver-class-name，url，username，password。这些是配置seata数据库的数据源。
solution：配置如下：
spring:
# 数据源配置
datasource:
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://ip:port/seata?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=false&serverTimezone=GMT%2B8
username: user1
password: password1
后续：随着对seata的熟悉，发现这里并非配置seata数据库，而是业务数据库，只不过，把配置项直接放到datasource: 下面了（以前在 datasource: 下，还有一个 druid: ）
而seata的数据库的数据源配置，是在nacos的 store.db.url 等配置项中。
2 seata报错2
io.seata.common.exception.FrameworkException: can not register RM,err:can not connect to services-server.
RCA：启动seata-server时，未手动设置端口。
solution：
-
服务端和客户端配置服务名称相同。
-
seata客户端配置file.conf：
如果registry.conf中设置其配置类型为nacos，则不会使用file.conf中的配置，而是使用nacos中的配置。
从而这里不用修改file.conf文件，而是要到nacos的seata_env命名空间中，修改 vgroupMapping.orders_tx_group 的值。
service {
# vgroupMapping.orders_tx_group = "seata-server"
vgroupMapping.orders_tx_group = "default"
}
- 启动seata-server时，手动设置端口，命令为：nohup ./bin/seata-server.sh -p 8091 -h 127.0.0.1 -m db >log.out 2>1 &
3 seata报错4
### Error updating database. Cause: java.sql.SQLException: java.sql.SQLSyntaxErrorException: Table 'db1.undo_log' doesn't exist
RCA: 在我的数据库db1中没有建立undo_log表。
solution：
建表，语句如下：
CREATE TABLE `undo_log` (
`branch_id` bigint(20) NOT NULL COMMENT 'branch transaction id',
`xid` varchar(128) NOT NULL COMMENT 'global transaction id',
`context` varchar(128) NOT NULL COMMENT 'undo_log context,such as serialization',
`rollback_info` longblob NOT NULL COMMENT 'rollback info',
`log_status` int(11) NOT NULL COMMENT '0:normal status,1:defense status',
`log_created` datetime(6) NOT NULL COMMENT 'create datetime',
`log_modified` datetime(6) NOT NULL COMMENT 'modify datetime',
UNIQUE KEY `ux_undo_log` (`xid`,`branch_id`)
) ENGINE=InnoDB COMMENT='AT transaction mode undo table';
4 seata报错5
2021-12-02 16:36:31.539 ERROR --- [ main] com.alibaba.druid.pool.DruidDataSource : init datasource error, url: jdbc:mysql://192.168.1.10:3306/seata?useUnicode=true&rewriteBatchedStatements=true
==> com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
RCA: nacos上配置的store.db.url 错误，
solution：
错误的配置值：jdbc:mysql://错误IP:错误端口/seata?useUnicode=true&rewriteBatchedStatements=true
改为正确的配置值：jdbc:mysql://新IP:新端口/seata?useUnicode=true&rewriteBatchedStatements=true
5 seata报错6
处理分布式事务时，openfeign调用远端接口，远端接口报错：
Caused by: java.sql.SQLException: java.lang.RuntimeException: com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Type id handling not implemented for type java.lang.Object (by serializer of type com.fasterxml.jackson.databind.ser.impl.UnsupportedTypeSerializer) (through reference chain: io.seata.rm.datasource.undo.BranchUndoLog["sqlUndoLogs"]->java.util.ArrayList[0]->io.seata.rm.datasource.undo.SQLUndoLog["beforeImage"]->io.seata.rm.datasource.sql.struct.TableRecords["rows"]->java.util.ArrayList[0]->io.seata.rm.datasource.sql.struct.Row["fields"]->java.util.ArrayList[2]->io.seata.rm.datasource.sql.struct.Field["value"])
RCA：seata默认使用jackson反序列化，但是有bug，官方还未修复。
SOLUTION1：将序列化器改为kryo。
修改方法：
在springboot的yaml配置文件中增加配置：
seata: client: undo: logSerialization: kryo
在pom.xml中引入kryo的3个依赖。
SOLUTION2：将序列化器改为fastjson。
修改方法：
在springboot的yaml配置文件中增加配置：
seata: client: undo: logSerialization: fastjson
seata: client: undo: log-serialization: fastjson # 这里可以使用属性logSerialization，也可以使用属性 log-serialization
在pom.xml中引入fastjson的1个依赖。
6 springboot启动报错Service id not legal hostname
ERRORLOG:
java.lang.IllegalStateException: Service id not legal hostname (inventorys_just_for_test)
RCA: Feign的服务名不能使用下划线，需使用中横线，如：“aa-bb”。
SOLUTION: 将服务名的下划线改为中横线。
7 springboot启动报错
ERRORLOG:
2021-12-07 10:21:12-[TID: N/A]- ERROR --- com.alibaba.nacos.client.config.http.ServerHttpAgent : [NACOS ConnectException httpPost] currentServerAddr: http://localhost:8848, err : 拒绝连接 (Connection refused)
java.net.ConnectException: [NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
RCA: 可能是系统没有发现bootstrap.yml配置文件，或者bootstrap.yml中配置的nacos上的配置文件没有被识别到，或没有被拉取到本地。
SOLUTION: 后来自己好了，好像也没做啥操作。
8 seata事务不生效
猜测1：和seata在nacos上注册的ip是 172.18.0.1（我的虚拟网卡的IP） 有关，seata-server可能要配置为该IP。 猜测错误。
猜测2：可能和这个配置项 seata.enable-auto-data-source-proxy: false 有关。确实是的，这个配置改为true后，就生效了。
但是又报第二个错误，并且一直在重复报该错误，如下：
2021-12-12 17:34:57-[TID: N/A]- INFO --- io.seata.rm.AbstractRMHandler : Branch Rollbacked result: PhaseTwo_RollbackFailed_Retryable
2021-12-12 17:34:58-[TID: N/A]- INFO --- io.seata.core.rpc.processor.client.RmBranchRollbackProcessor : rm handle branch rollback process:xid=172.18.0.1:8091:213348906720825344,branchId=213348911154204673,branchType=AT,resourceId=jdbc:mysql://localhost:3306/java_inventories,applicationData=null
2021-12-12 17:34:58-[TID: N/A]- INFO --- io.seata.rm.AbstractRMHandler : Branch Rollbacking: 172.18.0.1:8091:213348906720825344 213348911154204673 jdbc:mysql://localhost:3306/java_inventories
2021-12-12 17:34:58-[TID: N/A]- INFO --- io.seata.rm.datasource.DataSourceManager : branchRollback failed. branchType:[AT], xid:[172.18.0.1:8091:213348906720825344], branchId:[213348911154204673], resourceId:[jdbc:mysql://localhost:3306/java_inventories], applicationData:[null]. reason:[Branch session rollback failed and try again later xid = 172.18.0.1:8091:213348906720825344 branchId = 213348911154204673 Timestamp format must be yyyy-mm-dd hh:mm:ss[.fffffffff]]
原因是它一直在重试回滚事务，但每次都回滚失败，所以重复报错。
回滚失败的原因是，无法处理时间类型的序列化/返序列化。说时间格式不对，以下的undo_log中的数据中，时间格式是 2021-11-30T14:11:11，不符合它说的 yyyy-mm-dd hh:mm:ss[.fffffffff]]：
{"branchId":213340637168144385,"sqlUndoLogs":[{"afterImage":{"rows":[{"fields":[{"keyType":"PRIMARY_KEY","name":"id","type":12,"value":"1465564039652311041"},{"keyType":"NULL","name":"product_id","type":12,"value":"10012"},{"keyType":"NULL","name":"product_name","type":12,"value":"键盘"},{"keyType":"NULL","name":"stock_count","type":12,"value":"982"},{"keyType":"NULL","name":"delete_flag","type":4,"value":0},{"keyType":"NULL","name":"create_time","type":93,"value":"2021-11-30T14:11:11"},{"keyType":"NULL","name":"update_time","type":93,"value":"2021-12-12T16:32:07"}]}],"tableName":"biz_stock"},"beforeImage":{"rows":[{"fields":[{"keyType":"PRIMARY_KEY","name":"id","type":12,"value":"1465564039652311041"},{"keyType":"NULL","name":"product_id","type":12,"value":"10012"},{"keyType":"NULL","name":"product_name","type":12,"value":"键盘"},{"keyType":"NULL","name":"stock_count","type":12,"value":"984"},{"keyType":"NULL","name":"delete_flag","type":4,"value":0},{"keyType":"NULL","name":"create_time","type":93,"value":"2021-11-30T14:11:11"},{"keyType":"NULL","name":"update_time","type":93,"value":"2021-12-12T16:32:07"}]}],"tableName":"biz_stock"},"sqlType":"UPDATE","tableName":"biz_stock"}],"xid":"172.18.0.1:8091:213340630356594688"}
有2个解决方法：1 时间类型改为使用时间戳，不用datetime；2 由fastjson改为使用kryo序列化方式（jackson序列化器更加坑，不能用）。
9 gateway的过滤器（继承GlobalFilter）中使用openFeign报错
// 代码中注入了feignClient
@Autowired
private AuthenticateClient authenticateClient;
ERROR1：
Description:
Parameter 2 of constructor in com.example.ciic.gateway.filter.PreUaaFilter required a bean of type 'com.example.ciic.gateway.service.AuthenticateClient' that could not be found.
Action:
Consider defining a bean of type 'com.example.ciic.gateway.service.AuthenticateClient' in your configuration.
ACTION：
走了很多弯路，比如使用 ApplicationContext 获取feignClient对象，比如改用 WebClient 。
RCA1：
未在gateway的main类上添加注解 @EnableFeignClients，导致feignClient没有注入
SOLUTION1：增加如下注解 @EnableFeignClients：
@EnableFeignClients(defaultConfiguration = FeignConfig.class)
@SpringBootApplication
@Slf4j
public class GatewayApplication {
public static void main(String[] args) {
SpringApplication.run(GatewayApplication.class, args);
}
}
NOTE：下次寻找解决方法前，可以先检查一遍使用feign的各项配置是否都做了，以免浪费时间。
ERROR2：
[reactor-http-epoll-3] com.example.ciic.gateway.filter.PreUaaFilter No qualifying bean of type 'org.springframework.boot.autoconfigure.http.HttpMessageConverters' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
SOLUTION2：
添加配置类注入 HttpMessageConverterConfig 的 bean（实际代码中我使用了 FeignConfig.java这个类名称，因为以后可能会配置feign的其他配置项）：
package com.example.ciic.gateway.config;
import org.springframework.beans.factory.ObjectProvider;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.http.HttpMessageConverters;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import java.util.stream.Collectors;
@Configuration
public class HttpMessageConverterConfig {
@Bean
@ConditionalOnMissingBean
public HttpMessageConverters messageConverters(ObjectProvider<HttpMessageConverter<?>> converters) {
return new HttpMessageConverters(converters.orderedStream().collect(Collectors.toList()));
}
}
ERROR3:
com.netflix.client.ClientException: Load balancer does not have available server for client: ciicsh-java-authenticate
ACTION3:
no action. 是nacos的问题，或者是网络问题。
ERROR4：
[302] during [POST] to [http://ciicsh-java-authenticate/authenticate/verifyToken] [AuthenticateClient#verifyToken(String)]: []
或者报这个错：cannot retry due to redirection, in streaming mode executing POST http://localhost:9010/authenticate/refreshToken
RCA4:
当未登录认证系统时，该请求 /authenticate/verifyToken 被重定向到登录页了：http://10.17.9.213:9010/login
上述报错信息中，302代表临时重定向。
SOLUTION4:
在认证系统的ShiroConfig.java中添加不拦截url的规则：
public ShiroFilterFactoryBean shiroFilterFactoryBean(SecurityManager securityManager) {
...
filterChainDefinitionMap.put("/authenticate/**", "anon,captchaValidate");
...
}
ERROR5：
feign.codec.DecodeException: Could not extract response: no suitable HttpMessageConverter found for response type [interface io.jsonwebtoken.Claims] and content type [application/json]
RCA5：
测试过程中，我把 FeignConfig.java 删除了。
SOLUTION5：
和 SOLUTION2 一样。
ERROR6：
UnknownContentTypeException: Could not extract response: no suitable HttpMessageConverter found for response type [interface io.jsonwebtoken.Claims] and content type [application/json]
RCA6：
我看了下，feign返回的对象转换为了LinkedHashMap。而不是我期望的 Claims 对象。
SOLUTION6：
把 feignClient 接口中的方法的返回值改为 HashMap<String, Object> ：
@FeignClient(value = "ciicsh-java-authenticate", path = "/authenticate")
public interface AuthenticateClient {
@PostMapping("/verifyToken")
HashMap<String, Object> verifyToken(Map<String, String> map);
@PostMapping("/refreshToken")
HashMap<String, Object> refreshToken(Map<String, String> map);
}
10 skywalking的gateway插件版本不对不兼容
SOLUTION：
# 查看gateway的版本
ll skywalking/agent/plugins/apm-spring-cloud-gateway*
# result: -rw-rw-r-- 1 witt witt 43569 12月 9 17:12 skywalking/agent/plugins/apm-spring-cloud-gateway-2.1.x-plugin-8.5.0.jar
# 删除gateway2.1.x
rm -f skywalking/agent/plugins/apm-spring-cloud-gateway-2.1.x-plugin-8.5.0.jar
# 替换为gateway2.0.x
cp skywalking/agent/optional-plugins/apm-spring-cloud-gateway-2.0.x-plugin-8.5.0.jar skywalking/agent/plugins/
11 springboot微服务启动报错，无法连接到nacos
ERROR:
ERROR [com.alibaba.nacos.client.config.security.updater] com.alibaba.nacos.client.security.SecurityProxy [SecurityProxy] login http request failed url: http://nacos.k8sdev.ciicsh.com:80/nacos/v1/auth/users/login, params: {username=java}, bodyMap: {password=java}, errorMsg: errCode: 100, errMsg: Nacos serialize for class [com.alibaba.nacos.common.http.HttpRestResult] failed.
com.alibaba.nacos.client.config.impl.ClientWorker [fixed-nacos.k8sdev.ciicsh.com_80-java_demo] [sub-server-error] no right, dataId=gateway, group=DEFAULT_GROUP, tenant=java_demo
There was an unexpected error (type=Forbidden, status=403).unknown user!
一开始查网上资料，以为是nacos的需要配置用户名密码，还有context-path，yml文件中配置如下，然并卵：
spring:
cloud:
nacos:
config:
name: gateway
namespace: ******
# 此处必须要加端口号，否则会使用默认端口号8848
server-addr: nacos-dev.com:8848
file-extension: yaml
username: java
password: java
context-path: /nacos # 可不设置，默认就是这个值
RCA：是server-addr配置错误了，nacos-dev需要修改为nacos-test。修改为如下配置：
server-addr: nacos-test.com:8848
12 springboot启动时无法加载skywalking插件
RCA：skywalking相关的启动参数配置到了 Program arguments中，如下图所示：
应该配置在 VM options中，如下图所示：
13 springboot启动报错 No Feign Client for loadBalancing defined
ERROR:
Caused by: java.lang.IllegalStateException: No Feign Client for loadBalancing defined. Did you forget to include spring-cloud-starter-netflix-ribbon or spring-cloud-starter-loadbalancer?
RCA:
我的openfeign和loadbalancer的版本都为3.0.4.
feign需要其他的依赖提供负载均衡功能，为此需要ribbon或者 loadbalancer，但是这个版本中，经过测试，必须去掉ribbon，添加loadbalancer
SOLUTION:
pom.xml中的配置如下：
<!-- 服务调用 openFeign -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-netflix-ribbon</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- openFeign 依赖 loadbalancer 的负载均衡功能 -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-loadbalancer</artifactId>
</dependency>
