@Override
					public List<FlowRule> convert(String source) {
						try {
							return objectMapper.readValue(source,
									new TypeReference<List<FlowRule>>() {
									});
						}
						catch (IOException e) {
							// ignore
						}
						return null;
					}
@author <a href="mailto:fangjian0423@gmail.com">Jim</a>
spring-cloud-alibaba-starters/spring-cloud-alibaba-sentinel-datasource/src/test/java/com/alibaba/cloud/sentinel/datasource/DataSourcePropertiesTests.java