Tag: objectmapper

MapStruct String to List映射: 如何将String映射到List和List to String？考虑一下我们跟随classess class People{ private String primaryEmailAddress; private String secondaryEmailAddress; private List phones; //getter and setters } class PeopleTO{ private List emailAddress; private String primaryPhone; private String secondaryPhone; //getter and setters } 在Dozer和Orika中，我们可以使用以下代码行轻松映射 fields(“primaryEmailAddress”, “emailAddress[0]”) fields(“secondaryEmailAddress”, “emailAddress[1]”) fields(“phones[0]”, “primaryPhone”) fields(“phones[1]”, “secondaryPhone”) 我如何在MapStruct中进行相同类型的映射？我会在哪里找到有关mapstruct的更多示例？

无法在Spring Boot中将ProblemHandler设置为ObjectMapper: 我尝试使用Jackson2ObjectMapperBuilderCustomizer将自定义问题处理程序添加到对象映射器： @Bean public Jackson2ObjectMapperBuilderCustomizer customizer() { return new Jackson2ObjectMapperBuilderCustomizer() { @Override public void customize(Jackson2ObjectMapperBuilder builder) { ObjectMapper m = builder.build(); m.addHandler( new DeserializationProblemHandler() { @Override public boolean handleUnknownProperty(DeserializationContext ctxt, JsonParser p, JsonDeserializer deserializer, Object beanOrClass, String propertyName) throws IOException { System.out.println(“ahahahaa”); return super.handleUnknownProperty(ctxt, p, deserializer, beanOrClass, propertyName); } } ); } }; } 但是当我自动assemblyObjectMapper bean时，_problemHandlers属性为null。 […]

解析JSON时jackson错误“非法字符…只允许常规空格”: 我试图从URL检索JSON数据，但得到以下错误： Illegal character ((CTRL-CHAR, code 31)): only regular white space (\r, \n,\t) is allowed between tokens 我的代码： final URI uri = new URIBuilder(UrlConstants.SEARCH_URL) .addParameter(“keywords”, searchTerm) .addParameter(“count”, “50”) .build(); node = new ObjectMapper().readTree(new URL(uri.toString())); <<<<< THROWS THE ERROR 构建的url是https://www.example.org/api/search.json?keywords=iphone&count=50 这里出了什么问题？我怎样才能成功解析这些数据？ import： import com.google.appengine.repackaged.org.codehaus.jackson.JsonNode; import com.google.appengine.repackaged.org.codehaus.jackson.map.ObjectMapper; import com.google.appengine.repackaged.org.codehaus.jackson.node.ArrayNode; import org.apache.http.client.utils.URIBuilder; 示例响应 { meta: { indexAllowed: false […]