问题描述: 在ElasticSearch中的时间格式是 yyyy-MM-dd'T'HH:mm:ss 的格式的,但是在使用Jest查询结果时 执行jestClient.execute(search) ,会提示错误:

com.google.gson.JsonSyntaxException: 2018-09-30T16:07:53...Caused by: java.text.ParseException: Failed to parse date ["2018-09-30T16:07:53"]: No time zone indicator    at com.google.gson.internal.bind.util.ISO8601Utils.parse(ISO8601Utils.java:274) ~[gson-2.8.5.jar:na]    at com.google.gson.DefaultDateTypeAdapter.deserializeToDate(DefaultDateTypeAdapter.java:149) ~[gson-2.8.5.jar:na]    ... 48 common frames omitted

可以看到错误时Gson的错误,我们数据的格式和Jest去查询的格式不相符所致

看源码在io.searchbox.client.AbstractJestClient#ELASTIC_SEARCH_DATE_FORMAT 中定义了 public static final String ELASTIC_SEARCH_DATE_FORMAT = "yyyy-MM-dd'T'HH:mm:ssZ"; 与我们的数据格式不相符,因此需要去定义Gson的格式

解决方案: 将JestClient自己实现并加入spring的管理中,问题得到解决

/** * @author qi.liu * @create 2018-10-18 15:14 * @desc 描述: **/@Configurationpublic class JestClientConfig {    @Autowired(required = false)    private JestClientFactory jestClientFactory;    @Autowired    private ElasticsearchJestProperties properties;    @Bean    public JestClient createJestClient() {        GsonFactoryBean gsonFactoryBean = new GsonFactoryBean();        gsonFactoryBean.setDateFormatPattern("yyyy-MM-dd'T'HH:mm:ss");        gsonFactoryBean.afterPropertiesSet();        HttpClientConfig.Builder builder = new HttpClientConfig.Builder(properties.getUri()).gson(gsonFactoryBean.getObject())                .maxTotalConnection(properties.getMaxTotalConnection())                .defaultMaxTotalConnectionPerRoute(properties.getDefaultMaxTotalConnectionPerRoute())                .readTimeout(properties.getReadTimeout())                .multiThreaded(properties.getMultiThreaded());        JestClientFactory factory = jestClientFactory != null ? jestClientFactory : new JestClientFactory();        factory.setHttpClientConfig(builder.build());        return factory.getObject();    }}

时间被正确解析出来: