jackson序列化 has to be escaped using backslash to be included in string value

Jackson配置转义符的处理

// 忽略未知字段
mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES,false);
// 允许出现特殊字符和转义符
mapper.configure(JsonParser.Feature.ALLOW_UNQUOTED_CONTROL_CHARS, true);
// 允许出现单引号
mapper.configure(JsonParser.Feature.ALLOW_SINGLE_QUOTES, true);
mapper.registerModules(javaTimeModule);