基于fastjson返回时间类型格式

看一下fastjson源码

public abstract class JSON implements JSONStreamAware, JSONAware {
    public static TimeZone defaultTimeZone = TimeZone.getDefault();
    public static Locale defaultLocale = Locale.getDefault();
    public static String DEFAULT_TYPE_KEY = \"@type\";
    static final SerializeFilter[] emptyFilters = new SerializeFilter[0];
    public static String DEFFAULT_DATE_FORMAT = \"yyyy-MM-dd HH:mm:ss\";
    public static int DEFAULT_PARSER_FEATURE;
    public static int DEFAULT_GENERATE_FEATURE;
    public static final String VERSION = \"1.2.12\";
    private static final ThreadLocal<byte[]> bytesLocal;
    private static final ThreadLocal<char[]> charsLocal;

 可以看出，如果不指定时间格式，它默认格式为

public static String DEFFAULT_DATE_FORMAT = \"yyyy-MM-dd HH:mm:ss\";

所以我们只需要在json工具类中

JSON.DEFFAULT_DATE_FORMAT = \"yyyy-MM-dd\";
String userAgent = request.getHeader(\"User-Agent\");
if (userAgent.indexOf(\"MSIE\") > -1 && (userAgent.indexOf(\"MSIE 6\") > -1)) {
    writer.write(JSON.toJSONString(object, SerializerFeature.WriteDateUseDateFormat,
            SerializerFeature.DisableCircularReferenceDetect));
} else {
    writer.write(JSON.toJSONString(object, SerializerFeature.WriteDateUseDateFormat,
            SerializerFeature.DisableCircularReferenceDetect));
}

 数据转json格式方法前，添加相应的时间格式即可，如：

JSON.DEFFAULT_DATE_FORMAT = \"yyyy-MM-dd\";