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flystar32 2019-06-03 14:45:31 +08:00
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26 changed files with 223 additions and 181 deletions
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18
spring-cloud-alibaba-dependencies/pom.xml
View File

@ -18,19 +18,19 @@
<properties>
<sentinel.version>1.6.1</sentinel.version>
<oss.version>3.1.0</oss.version>
<seata.version>0.5.1</seata.version>
<nacos.version>1.0.0</nacos.version>
<fescar.version>0.4.2</fescar.version>
<acm.version>1.0.8</acm.version>
<acm.version>1.0.9</acm.version>
<ans.version>1.0.1</ans.version>
<aliyun.sdk.version>4.0.1</aliyun.sdk.version>
<aliyun.sdk.version>4.4.1</aliyun.sdk.version>
<alicloud.context.version>1.0.5</alicloud.context.version>
<aliyun.sdk.edas.version>2.16.0</aliyun.sdk.edas.version>
<aliyun.sdk.edas.version>2.44.0</aliyun.sdk.edas.version>
<rocketmq.starter.version>2.0.2</rocketmq.starter.version>
<schedulerX.client.version>2.1.6</schedulerX.client.version>
<aliyun.java.sdk.dysmsapi>1.1.0</aliyun.java.sdk.dysmsapi>
<aliyun.sdk.mns>1.1.8</aliyun.sdk.mns>
<dubbo.version>2.7.1</dubbo.version>
<dubbo-spring-boot.version>2.7.1</dubbo-spring-boot.version>
<aliyun.java.sdk.dysmsapi>1.1.0</aliyun.java.sdk.dysmsapi>
<aliyun.sdk.mns>1.1.8.6</aliyun.sdk.mns>
</properties>
<dependencyManagement>
@ -191,9 +191,9 @@
<!--Alibaba Fescar-->
<dependency>
<groupId>com.alibaba.fescar</groupId>
<artifactId>fescar-spring</artifactId>
<version>${fescar.version}</version>
<groupId>io.seata</groupId>
<artifactId>seata-spring</artifactId>
<version>${seata.version}</version>
</dependency>
<!-- Dubbo -->

3
spring-cloud-alibaba-examples/seata-example/account-service/src/main/java/org/springframework/cloud/alibaba/cloud/examples/AccountController.java
View File

@ -17,8 +17,7 @@ package org.springframework.cloud.alibaba.cloud.examples;
import java.util.Random;
import com.alibaba.fescar.core.context.RootContext;
import io.seata.core.context.RootContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.jdbc.core.JdbcTemplate;

7
spring-cloud-alibaba-examples/seata-example/account-service/src/main/java/org/springframework/cloud/alibaba/cloud/examples/DatabaseConfiguration.java
View File

@ -16,8 +16,10 @@
package org.springframework.cloud.alibaba.cloud.examples;
import java.sql.SQLException;
import java.util.Random;
import com.alibaba.druid.pool.DruidDataSource;
import io.seata.rm.datasource.DataSourceProxy;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@ -25,9 +27,6 @@ import org.springframework.context.annotation.Primary;
import org.springframework.core.env.Environment;
import org.springframework.jdbc.core.JdbcTemplate;
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.fescar.rm.datasource.DataSourceProxy;
/**
* @author xiaojing
*/

3
spring-cloud-alibaba-examples/seata-example/business-service/src/main/java/org/springframework/cloud/alibaba/cloud/examples/HomeController.java
View File

@ -16,8 +16,7 @@
package org.springframework.cloud.alibaba.cloud.examples;
import com.alibaba.fescar.spring.annotation.GlobalTransactional;
import io.seata.spring.annotation.GlobalTransactional;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.cloud.alibaba.cloud.examples.BusinessApplication.OrderService;

20
spring-cloud-alibaba-examples/seata-example/business-service/src/main/resources/file.conf
View File

@ -20,7 +20,15 @@ transport {
worker-thread-size = 8
}
}
## transaction log store
store {
## store mode: file、db
mode = "file"
## file store
file {
dir = "sessionStore"
# branch session size , if exceeded first try compress lockkey, still exceeded throws exceptions
max-branch-session-size = 16384
# globe session size , if exceeded throws exceptions
@ -29,6 +37,18 @@ store {
file-write-buffer-cache-size = 16384
# when recover batch read size
session.reload.read_size = 100
# async, sync
flush-disk-mode = async
}
## database store
db {
driver_class = ""
url = ""
user = ""
password = ""
}
}
service {
#vgroup->rgroup

17
spring-cloud-alibaba-examples/seata-example/business-service/src/main/resources/registry.conf
View File

@ -1,5 +1,5 @@
registry {
# file 、nacos 、eureka、redis、zk、consul
# file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
type = "file"
nacos {
@ -26,6 +26,19 @@ registry {
cluster = "default"
serverAddr = "127.0.0.1:8500"
}
etcd3 {
cluster = "default"
serverAddr = "http://localhost:2379"
}
sofa {
serverAddr = "127.0.0.1:9603"
application = "default"
region = "DEFAULT_ZONE"
datacenter = "DefaultDataCenter"
cluster = "default"
group = "SEATA_GROUP"
addressWaitTime = "3000"
}
file {
name = "file.conf"
}
@ -41,7 +54,7 @@ config {
cluster = "default"
}
apollo {
app.id = "fescar-server"
app.id = "seata-server"
apollo.meta = "http://192.168.1.204:8801"
}
zk {

2
spring-cloud-alibaba-examples/seata-example/order-service/src/main/java/org/springframework/cloud/alibaba/cloud/examples/DatabaseConfiguration.java
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@ -25,7 +25,7 @@ import org.springframework.core.env.Environment;
import org.springframework.jdbc.core.JdbcTemplate;
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.fescar.rm.datasource.DataSourceProxy;
import io.seata.rm.datasource.DataSourceProxy;
/**
* @author xiaojing

2
spring-cloud-alibaba-examples/seata-example/order-service/src/main/java/org/springframework/cloud/alibaba/cloud/examples/OrderController.java
View File

@ -16,8 +16,8 @@
package org.springframework.cloud.alibaba.cloud.examples;
import com.alibaba.fescar.core.context.RootContext;
import io.seata.core.context.RootContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpEntity;

20
spring-cloud-alibaba-examples/seata-example/order-service/src/main/resources/file.conf
View File

@ -20,7 +20,15 @@ transport {
worker-thread-size = 8
}
}
## transaction log store
store {
## store mode: file、db
mode = "file"
## file store
file {
dir = "sessionStore"
# branch session size , if exceeded first try compress lockkey, still exceeded throws exceptions
max-branch-session-size = 16384
# globe session size , if exceeded throws exceptions
@ -29,6 +37,18 @@ store {
file-write-buffer-cache-size = 16384
# when recover batch read size
session.reload.read_size = 100
# async, sync
flush-disk-mode = async
}
## database store
db {
driver_class = ""
url = ""
user = ""
password = ""
}
}
service {
#vgroup->rgroup

17
spring-cloud-alibaba-examples/seata-example/order-service/src/main/resources/registry.conf
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@ -1,5 +1,5 @@
registry {
# file 、nacos 、eureka、redis、zk、consul
# file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
type = "file"
nacos {
@ -26,6 +26,19 @@ registry {
cluster = "default"
serverAddr = "127.0.0.1:8500"
}
etcd3 {
cluster = "default"
serverAddr = "http://localhost:2379"
}
sofa {
serverAddr = "127.0.0.1:9603"
application = "default"
region = "DEFAULT_ZONE"
datacenter = "DefaultDataCenter"
cluster = "default"
group = "SEATA_GROUP"
addressWaitTime = "3000"
}
file {
name = "file.conf"
}
@ -41,7 +54,7 @@ config {
cluster = "default"
}
apollo {
app.id = "fescar-server"
app.id = "seata-server"
apollo.meta = "http://192.168.1.204:8801"
}
zk {

28
spring-cloud-alibaba-examples/seata-example/readme-zh.md
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@ -19,14 +19,14 @@
1. 创建 示例中 业务所需要的数据库表
1. 启动 Fescar Server
1. 启动 Seata Server
### 配置数据库
首先，你需要有一个支持 InnoDB 引擎的 MySQL 数据库。
**注意**： 实际上，Fescar 支持不同的应用使用完全不相干的数据库，但是这里为了简单地演示一个原理，所以我们选择了只使用一个数据库。
**注意**： 实际上，Seata 支持不同的应用使用完全不相干的数据库，但是这里为了简单地演示一个原理，所以我们选择了只使用一个数据库。
将 `account-server`、`order-service`、`storage-service` 这三个应用中的 resources 目录下的 `application.properties` 文件中的如下配置修改成你运行环境中的实际配置。
@ -42,7 +42,7 @@ mysql.user.password=your mysql server password
### 创建 undo_log 表
[Fescar AT 模式]() 需要使用到 undo_log 表。
[Seata AT 模式]() 需要使用到 undo_log 表。
``` $sql
-- 注意此处0.3.0+ 增加唯一索引 ux_undo_log
@ -93,24 +93,24 @@ CREATE TABLE `account_tbl` (
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
```
### 启动 Fescar Server
### 启动 Seata Server
点击这个页面 [https://github.com/alibaba/fescar/releases](https://github.com/alibaba/fescar/releases)，下载最新版本的 Fescar Server 端.
点击这个页面 [https://github.com/seata/seata/releases](https://github.com/seata/seata/releases)，下载最新版本的 Seata Server 端.
进入解压之后的 bin 目录，执行如下命令来启动
```$shell
sh fescar-server.sh $LISTEN_PORT $PATH_FOR_PERSISTENT_DATA
sh seata-server.sh $LISTEN_PORT $MODE(file or db)
```
在这个示例中，采用如下命令来启动 Fescar Server
在这个示例中，采用如下命令来启动 Seata Server
```$shell
sh fescar-server.sh 8091 ~/fescar/data/
sh seata-server.sh 8091 file
```
**注意** 如果你修改了端口号，那么记得需要在各个示例工程中的 `application.conf` 文件中，修改 grouplist 的值。
**注意** 如果你修改了endpoint且注册中心使用默认file类型，那么记得需要在各个示例工程中的 `file.conf` 文件中，修改 grouplist 的值(当registry.conf 中registry.type 或 config.type 为file 时会读取内部的file节点中的文件名，若type不为file将直接从配置类型的对应元数据的注册配置中心读取数据)，推荐大家使用 nacos 作为配置注册中心。
## 运行示例
@ -146,12 +146,12 @@ http://127.0.0.1:18081/fescar/rest
## 对 Spring Cloud 支持点
- 通过 Spring MVC 提供服务的服务提供者，在收到 header 中含有 Fescar 信息的 HTTP 请求时，可以自动还原 Fescar 上下文。
- 通过 Spring MVC 提供服务的服务提供者，在收到 header 中含有 Seata 信息的 HTTP 请求时，可以自动还原 Seata 上下文。
- 支持服务调用者通过 RestTemplate 调用时，自动传递 Fescar 上下文。
- 支持服务调用者通过 RestTemplate 调用时，自动传递 Seata 上下文。
- 支持服务调用者通过 FeignClient 调用时，自动传递 Fescar 上下文。
- 支持服务调用者通过 FeignClient 调用时，自动传递 Seata 上下文。
- 支持 FeignClient 和 Hystrix 同时使用的场景。
- 支持 SeataClient 和 Hystrix 同时使用的场景。
- 支持 FeignClient 和 Sentinel 同时使用的场景。
- 支持 SeataClient 和 Sentinel 同时使用的场景。

2
spring-cloud-alibaba-examples/seata-example/storage-service/src/main/java/org/springframework/cloud/alibaba/cloud/examples/DatabaseConfiguration.java
View File

@ -19,7 +19,7 @@ package org.springframework.cloud.alibaba.cloud.examples;
import java.sql.SQLException;
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.fescar.rm.datasource.DataSourceProxy;
import io.seata.rm.datasource.DataSourceProxy;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;

2
spring-cloud-alibaba-examples/seata-example/storage-service/src/main/java/org/springframework/cloud/alibaba/cloud/examples/StorageController.java
View File

@ -16,7 +16,7 @@
package org.springframework.cloud.alibaba.cloud.examples;
import com.alibaba.fescar.core.context.RootContext;
import io.seata.core.context.RootContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

20
spring-cloud-alibaba-examples/seata-example/storage-service/src/main/resources/file.conf
View File

@ -20,7 +20,15 @@ transport {
worker-thread-size = 8
}
}
## transaction log store
store {
## store mode: file、db
mode = "file"
## file store
file {
dir = "sessionStore"
# branch session size , if exceeded first try compress lockkey, still exceeded throws exceptions
max-branch-session-size = 16384
# globe session size , if exceeded throws exceptions
@ -29,6 +37,18 @@ store {
file-write-buffer-cache-size = 16384
# when recover batch read size
session.reload.read_size = 100
# async, sync
flush-disk-mode = async
}
## database store
db {
driver_class = ""
url = ""
user = ""
password = ""
}
}
service {
#vgroup->rgroup

17
spring-cloud-alibaba-examples/seata-example/storage-service/src/main/resources/registry.conf
View File

@ -1,5 +1,5 @@
registry {
# file 、nacos 、eureka、redis、zk、consul
# file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
type = "file"
nacos {
@ -26,6 +26,19 @@ registry {
cluster = "default"
serverAddr = "127.0.0.1:8500"
}
etcd3 {
cluster = "default"
serverAddr = "http://localhost:2379"
}
sofa {
serverAddr = "127.0.0.1:9603"
application = "default"
region = "DEFAULT_ZONE"
datacenter = "DefaultDataCenter"
cluster = "default"
group = "SEATA_GROUP"
addressWaitTime = "3000"
}
file {
name = "file.conf"
}
@ -41,7 +54,7 @@ config {
cluster = "default"
}
apollo {
app.id = "fescar-server"
app.id = "seata-server"
apollo.meta = "http://192.168.1.204:8801"
}
zk {

53
spring-cloud-alibaba-nacos-discovery/src/main/java/org/springframework/cloud/alibaba/nacos/discovery/NacosWatch.java
View File

@ -123,61 +123,10 @@ public class NacosWatch implements ApplicationEventPublisherAware, SmartLifecycl
}
public void nacosServicesWatch() {
try {
boolean changed = false;
NamingService namingService = properties.namingServiceInstance();
ListView<String> listView = properties.namingServiceInstance()
.getServicesOfServer(1, Integer.MAX_VALUE);
List<String> serviceList = listView.getData();
// if there are new services found, publish event
Set<String> currentServices = new HashSet<>(serviceList);
currentServices.removeAll(cacheServices);
if (currentServices.size() > 0) {
changed = true;
}
// if some services disappear, publish event
if (cacheServices.removeAll(new HashSet<>(serviceList))
&& cacheServices.size() > 0) {
changed = true;
for (String serviceName : cacheServices) {
namingService.unsubscribe(serviceName,
subscribeListeners.get(serviceName));
subscribeListeners.remove(serviceName);
}
}
cacheServices = new HashSet<>(serviceList);
// subscribe services's node change, publish event if nodes changed
for (String serviceName : cacheServices) {
if (!subscribeListeners.containsKey(serviceName)) {
EventListener eventListener = new EventListener() {
@Override
public void onEvent(Event event) {
NacosWatch.this.publisher.publishEvent(new HeartbeatEvent(
NacosWatch.this, nacosWatchIndex.getAndIncrement()));
}
};
subscribeListeners.put(serviceName, eventListener);
namingService.subscribe(serviceName, eventListener);
}
}
if (changed) {
// nacos doesn't support watch now , publish an event every 30 seconds.
this.publisher.publishEvent(
new HeartbeatEvent(this, nacosWatchIndex.getAndIncrement()));
}
}
catch (Exception e) {
log.error("Error watching Nacos Service change", e);
}
}
}

4
spring-cloud-alibaba-seata/pom.xml
View File

@ -16,8 +16,8 @@
<dependencies>
<dependency>
<groupId>com.alibaba.fescar</groupId>
<artifactId>fescar-spring</artifactId>
<groupId>io.seata</groupId>
<artifactId>seata-spring</artifactId>
</dependency>
<dependency>

2
spring-cloud-alibaba-seata/src/main/java/org/springframework/cloud/alibaba/seata/GlobalTransactionAutoConfiguration.java
View File

@ -16,7 +16,7 @@
package org.springframework.cloud.alibaba.seata;
import com.alibaba.fescar.spring.annotation.GlobalTransactionScanner;
import io.seata.spring.annotation.GlobalTransactionScanner;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.ApplicationContext;

2
spring-cloud-alibaba-seata/src/main/java/org/springframework/cloud/alibaba/seata/SeataProperties.java
View File

@ -27,7 +27,7 @@ public class SeataProperties {
// todo support config Fescar server information
/**
* Fescar tx service group.default is ${spring.application.name}-fescar-service-group.
* Seata tx service group.default is ${spring.application.name}-fescar-service-group.
*/
private String txServiceGroup;

12
spring-cloud-alibaba-seata/src/main/java/org/springframework/cloud/alibaba/seata/feign/SeataFeignClient.java
View File

@ -23,13 +23,11 @@ import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.alibaba.fescar.core.context.RootContext;
import org.springframework.beans.factory.BeanFactory;
import feign.Client;
import feign.Request;
import feign.Response;
import io.seata.core.context.RootContext;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.util.StringUtils;
/**
@ -39,6 +37,7 @@ public class SeataFeignClient implements Client {
private final Client delegate;
private final BeanFactory beanFactory;
private static final int MAP_SIZE = 16;
SeataFeignClient(BeanFactory beanFactory) {
this.beanFactory = beanFactory;
@ -57,8 +56,7 @@ public class SeataFeignClient implements Client {
try {
return this.delegate.execute(modifiedRequest, options);
}
finally {
} finally {
}
}
@ -71,7 +69,7 @@ public class SeataFeignClient implements Client {
return request;
}
Map<String, Collection<String>> headers = new HashMap<>();
Map<String, Collection<String>> headers = new HashMap<>(MAP_SIZE);
headers.putAll(request.headers());
List<String> fescarXid = new ArrayList<>();

6
spring-cloud-alibaba-seata/src/main/java/org/springframework/cloud/alibaba/seata/feign/SeataFeignClientAutoConfiguration.java
View File

@ -65,19 +65,19 @@ public class SeataFeignClientAutoConfiguration {
protected static class FeignBeanPostProcessorConfiguration {
@Bean
SeataBeanPostProcessor fescarBeanPostProcessor(
SeataBeanPostProcessor seataBeanPostProcessor(
SeataFeignObjectWrapper seataFeignObjectWrapper) {
return new SeataBeanPostProcessor(seataFeignObjectWrapper);
}
@Bean
SeataContextBeanPostProcessor fescarContextBeanPostProcessor(
SeataContextBeanPostProcessor seataContextBeanPostProcessor(
BeanFactory beanFactory) {
return new SeataContextBeanPostProcessor(beanFactory);
}
@Bean
SeataFeignObjectWrapper fescarFeignObjectWrapper(BeanFactory beanFactory) {
SeataFeignObjectWrapper seataFeignObjectWrapper(BeanFactory beanFactory) {
return new SeataFeignObjectWrapper(beanFactory);
}
}

2
spring-cloud-alibaba-seata/src/main/java/org/springframework/cloud/alibaba/seata/feign/hystrix/SeataHystrixAutoConfiguration.java
View File

@ -30,7 +30,7 @@ import com.netflix.hystrix.HystrixCommand;
public class SeataHystrixAutoConfiguration {
@Bean
SeataHystrixConcurrencyStrategy fescarHystrixConcurrencyStrategy() {
SeataHystrixConcurrencyStrategy seataHystrixConcurrencyStrategy() {
return new SeataHystrixConcurrencyStrategy();
}

12
spring-cloud-alibaba-seata/src/main/java/org/springframework/cloud/alibaba/seata/feign/hystrix/SeataHystrixConcurrencyStrategy.java
View File

@ -17,7 +17,7 @@ package org.springframework.cloud.alibaba.seata.feign.hystrix;
import java.util.concurrent.Callable;
import com.alibaba.fescar.core.context.RootContext;
import io.seata.core.context.RootContext;
import com.netflix.hystrix.strategy.HystrixPlugins;
import com.netflix.hystrix.strategy.concurrency.HystrixConcurrencyStrategy;
@ -37,7 +37,7 @@ public class SeataHystrixConcurrencyStrategy extends HystrixConcurrencyStrategy
@Override
public <K> Callable<K> wrapCallable(Callable<K> c) {
if (c instanceof FescarContextCallable) {
if (c instanceof SeataContextCallable) {
return c;
}
@ -48,19 +48,19 @@ public class SeataHystrixConcurrencyStrategy extends HystrixConcurrencyStrategy
else {
wrappedCallable = c;
}
if (wrappedCallable instanceof FescarContextCallable) {
if (wrappedCallable instanceof SeataContextCallable) {
return wrappedCallable;
}
return new FescarContextCallable<>(wrappedCallable);
return new SeataContextCallable<>(wrappedCallable);
}
private static class FescarContextCallable<K> implements Callable<K> {
private static class SeataContextCallable<K> implements Callable<K> {
private final Callable<K> actual;
private final String xid;
FescarContextCallable(Callable<K> actual) {
SeataContextCallable(Callable<K> actual) {
this.actual = actual;
this.xid = RootContext.getXID();
}

13
spring-cloud-alibaba-seata/src/main/java/org/springframework/cloud/alibaba/seata/rest/SeataRestTemplateAutoConfiguration.java
View File

@ -31,18 +31,17 @@
package org.springframework.cloud.alibaba.seata.rest;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import javax.annotation.PostConstruct;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.client.ClientHttpRequestInterceptor;
import org.springframework.web.client.RestTemplate;
import javax.annotation.PostConstruct;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
/**
* @author xiaojing
*/
@ -51,7 +50,7 @@ import org.springframework.web.client.RestTemplate;
public class SeataRestTemplateAutoConfiguration {
@Bean
public SeataRestTemplateInterceptor fescarRestTemplateInterceptor() {
public SeataRestTemplateInterceptor seataRestTemplateInterceptor() {
return new SeataRestTemplateInterceptor();
}

2
spring-cloud-alibaba-seata/src/main/java/org/springframework/cloud/alibaba/seata/rest/SeataRestTemplateInterceptor.java
View File

@ -18,7 +18,7 @@ package org.springframework.cloud.alibaba.seata.rest;
import java.io.IOException;
import com.alibaba.fescar.core.context.RootContext;
import io.seata.core.context.RootContext;
import org.springframework.http.HttpRequest;
import org.springframework.http.client.ClientHttpRequestExecution;

8
spring-cloud-alibaba-seata/src/main/java/org/springframework/cloud/alibaba/seata/web/SeataHandlerInterceptor.java
View File

@ -19,7 +19,7 @@ package org.springframework.cloud.alibaba.seata.web;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.alibaba.fescar.core.context.RootContext;
import io.seata.core.context.RootContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@ -30,10 +30,10 @@ import org.springframework.web.servlet.ModelAndView;
/**
* @author xiaojing
*
* Fescar HandlerInterceptor, Convert Fescar information into
* @see com.alibaba.fescar.core.context.RootContext from http request's header in
* Seata HandlerInterceptor, Convert Seata information into
* @see io.seata.core.context.RootContext from http request's header in
* {@link org.springframework.web.servlet.HandlerInterceptor#preHandle(HttpServletRequest , HttpServletResponse , Object )},
* And clean up Fescar information after servlet method invocation in
* And clean up Seata information after servlet method invocation in
* {@link org.springframework.web.servlet.HandlerInterceptor#afterCompletion(HttpServletRequest, HttpServletResponse, Object, Exception)}
*/
public class SeataHandlerInterceptor implements HandlerInterceptor {