Fix active xa rollback failure and added error message judgment#875

MinatoWu wants to merge 4 commits intoapache:masterapache/incubator-seata-go:masterfrom

MinatoWu:fix-rollback-active-xa-connection-failMinatoWu/incubator-seata-go:fix-rollback-active-xa-connection-failCopy head branch name to clipboard