请问你用的是seata几版本？

statelang里，是不能配置APP_NAME的。

applicationId 必须要在 DbStateMachineConfig.afterPropertiesSet 触发之前设置进去，才会生效。

applicationId 必须要在 DbStateMachineConfig.afterPropertiesSet 触发之前设置进去，才会生效。

我使用的版本是：1.3.0
以下是的代码

@ConditionalOnMissingBean(StateMachineConfig.class)
    @Bean
    public StateMachineConfig stateMachineConfig(SagaConfig sagaConfig) throws Exception {
        DbStateMachineConfig dbStateMachineConfig = new DbStateMachineConfig();
        // 在这里已经设置了ApplicationId
        dbStateMachineConfig.setApplicationId(sagaConfig.getApplicationId());
        // sdbStateMachineConfig.setDbType("oracle");
        dbStateMachineConfig.setTxServiceGroup(sagaConfig.getApplicationGroup());
        dbStateMachineConfig.setDefaultTenantId(sagaConfig.getApplicationTenant());
        DataSource dataSource = (DataSource) applicationContext.getBean(sagaConfig.getDataSource());
        dbStateMachineConfig.setDataSource(dataSource);
        dbStateMachineConfig.setResources(applicationContext.getResources(sagaConfig.getResources()));

        if (!StringUtils.isEmpty(sagaConfig.getTablePrefix())) {
            dbStateMachineConfig.setTablePrefix(sagaConfig.getTablePrefix());
        }

        dbStateMachineConfig.setTransOperationTimeout(sagaConfig.getTransOperationTimeout());
        dbStateMachineConfig.setServiceInvokeTimeout(sagaConfig.getServiceInvokeTimeout());

        String dbType = dbStateMachineConfig.getDbTypeFromDataSource(dataSource);

        DbAndReportTcStateLogStore dbStateLogStore = new DbAndReportTcStateLogStore();
        dbStateLogStore.setDataSource(dataSource);
        dbStateLogStore.setTablePrefix(dbStateMachineConfig.getTablePrefix());
        dbStateLogStore.setDbType(dbType);
        dbStateLogStore.setDefaultTenantId(dbStateMachineConfig.getDefaultTenantId());
        dbStateLogStore.setSeqGenerator(dbStateMachineConfig.getSeqGenerator());

        if (StringUtils.hasLength(dbStateMachineConfig.getSagaJsonParser())) {
            ParamsSerializer paramsSerializer = new ParamsSerializer();
            paramsSerializer.setJsonParserName(dbStateMachineConfig.getSagaJsonParser());
            dbStateLogStore.setParamsSerializer(paramsSerializer);
        }

        DefaultSagaTransactionalTemplate defaultSagaTransactionalTemplate
                = new DefaultSagaTransactionalTemplate();
        defaultSagaTransactionalTemplate.setApplicationContext(applicationContext);
        // 这里的ApplicationId 是正确的
        defaultSagaTransactionalTemplate.setApplicationId(dbStateMachineConfig.getApplicationId());
        defaultSagaTransactionalTemplate.setTxServiceGroup(dbStateMachineConfig.getTxServiceGroup());
        defaultSagaTransactionalTemplate.afterPropertiesSet();

        dbStateMachineConfig.setSagaTransactionalTemplate(defaultSagaTransactionalTemplate);

        dbStateLogStore.setSagaTransactionalTemplate(defaultSagaTransactionalTemplate);

        dbStateMachineConfig.setStateLogStore(dbStateLogStore);

        return dbStateMachineConfig;
    }

没有写入成功的原因:
StateMachineRepositoryImpl.java

@Override
    public void registryByResources(Resource[] resources, String tenantId) throws IOException {
        if (resources != null) {
            for (Resource resource : resources) {
                String json = IOUtils.toString(resource.getInputStream(), charset);
                StateMachine stateMachine = StateMachineParserFactory.getStateMachineParser(jsonParserName).parse(json);
                if (stateMachine != null) {
                    stateMachine.setContent(json);
                    // 这里只补充了租户信息，缺少ApplicationId 
                    if (StringUtils.isBlank(stateMachine.getTenantId())) {
                        stateMachine.setTenantId(tenantId);
                    }
                    registryStateMachine(stateMachine);
                    if (LOGGER.isDebugEnabled()) {
                        LOGGER.debug("===== StateMachine Loaded: \n{}", json);
                    }
                }
            }
        }
    }

可以在StateMachineRepositoryImpl 增加ApplicationId 字段也可以在Parse侧附加ApplicationId 但都不太优雅，希望官方给个合适方案。

请参照 PR #2838
这个PR添加了Saga自动装配。目前还没有合并。