shadowwinds commented on issue #22356:
URL:
https://github.com/apache/shardingsphere/issues/22356#issuecomment-2478119868
> Rewrite the SeataTransactionHolder class to make it public, add an
interceptor and manually call SeataTransactionHolder.set(), it can work
normally, but I don't know if it is correct.
>
> ```java
> public final class SeataTransactionHolder {
>
> private SeataTransactionHolder() {
>
> }
>
> private static final ThreadLocal<GlobalTransaction> CONTEXT = new
ThreadLocal<>();
>
> /**
> * Set seata global transaction.
> *
> * @param transaction global transaction context
> */
> public static void set(final GlobalTransaction transaction) {
> CONTEXT.set(transaction);
> }
>
> /**
> * Get seata global transaction.
> *
> * @return global transaction
> */
> public static GlobalTransaction get() {
> return CONTEXT.get();
> }
>
> /**
> * Clear global transaction.
> */
> public static void clear() {
> CONTEXT.remove();
> }
> }
> ```
>
> ```java
> @Configuration
> public class SeataFeignInterceptorConfiguration implements
WebMvcConfigurer {
>
> @Override
> public void addInterceptors(InterceptorRegistry registry) {
> registry.addInterceptor(new
SeataFeignInterceptor()).addPathPatterns("/**");
> }
>
> public static class SeataFeignInterceptor implements
HandlerInterceptor {
>
> @Override
> public boolean preHandle(HttpServletRequest request,
HttpServletResponse response, Object handler) throws Exception {
> String xid = RootContext.getXID();
> if (xid == null) {
> xid = request.getHeader(RootContext.KEY_XID);
> }
>
> if (!StringUtils.isBlank(xid) && SeataTransactionHolder.get()
== null) {
> RootContext.bind(xid);
>
SeataTransactionHolder.set(GlobalTransactionContext.getCurrentOrCreate());
> }
>
> return true;
> }
> }
> }
> ```
For those using Seata and Sharding Sphere before 5.5.1, you may need to
modify SeataATShardingSphereTransactionManager
https://github.com/apache/shardingsphere/pull/32095/files#diff-e8dafec201902f04425b22562c566322b0dcc4e8680a3ff1b4695484703cba6d
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