fasterxml

JAVA跨域、RestTemplate高并发下异常与配置、JSON数据Long转String

試著忘記壹切 提交于 2019-12-05 19:58:17
跨域支持 import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.web.cors.CorsConfiguration; import org.springframework.web.cors.UrlBasedCorsConfigurationSource; import org.springframework.web.filter.CorsFilter; @Configuration public class CorsConfig { /** * 跨域支持 * * @return / @Bean public CorsFilter corsFilter() { final UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource(); final CorsConfiguration config = new CorsConfiguration(); config.setAllowCredentials(true); // 允许cookies跨域 config

Create Java 8 Stream from ArrayNode

心已入冬 提交于 2019-12-05 13:25:07
问题 Is it possible to create stream from com.fasterxml.jackson.databind.node.ArrayNode ? I tried: ArrayNode files = (ArrayNode) json.get("files"); Stream<JsonNode> stream = Stream.of(files); But it will actually give stream of one element, the initial ArrayNode object. Correct result should be Stream<JsonNode> , can I achieve it? 回答1: ArrayNode implements Iterable . Iterable has a spliterator() method. You can create a sequential Stream from a Spliterator using StreamSupport.stream(spliterator,

Json (fasterxml) stackoverflow exception

不打扰是莪最后的温柔 提交于 2019-12-05 10:50:36
When trying to serialize a Category I get a stackoverflow. Exception Warning: StandardWrapperValve[dispatcher]: Servlet.service() for servlet dispatcher threw exception java.lang.StackOverflowError at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:760) at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.findClass(BundleWiringImpl.java:2279) at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1501) at org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java

Generate JSON schema from java class

一个人想着一个人 提交于 2019-12-04 09:52:30
问题 I have a POJO class public class Stock{ int id; String name; Date date; } Are there any annotations or development framework/api that can convert POJO to JSON schema like below {"id": { "type" : "int" }, "name":{ "type" : "string" } "date":{ "type" : "Date" } } and also i can expand the schema to add information like "Required" : "Yes", description for each field, etc., by specifying some annotations or configurations on POJO and can generate JSON Schema like below. {"id": { "type" : "int",

com.fasterxml.jackson.databind.JsonMappingException: Jackson version is too old 2.5.3

谁都会走 提交于 2019-12-04 04:23:22
My OS is OS X 10.11.6. I'm running Spark 2.0, Zeppelin 0.6, Scala 2.11 When I run this code in Zeppelin I get an exception from Jackson. When I run this code in spark-shell - no exception. val filestream = ssc.textFileStream("/Users/davidlaxer/first-edition/ch06") com.fasterxml.jackson.databind.JsonMappingException: Jackson version is too old 2.5.3 at com.fasterxml.jackson.module.scala.JacksonModule$class.setupModule(JacksonModule.scala:56) at com.fasterxml.jackson.module.scala.DefaultScalaModule.setupModule(DefaultScalaModule.scala:19) at com.fasterxml.jackson.databind.ObjectMapper

NoClassDefFoundError of com/fasterxml/jackson/databind/ObjectMapper with Maven

。_饼干妹妹 提交于 2019-12-04 03:50:15
问题 This is a similar question as the one here, which is unfortunately unresolved yet. If you want to debug the code, here is the GitHub repo. I got the following NoClassDefFoundError for ObjectMapper though I have added the related dependency to Mave pom.xml . Exception in thread "main" java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/ObjectMapper at demo.DemoMain.main(DemoMain.java:10) Caused by: java.lang.ClassNotFoundException: com.fasterxml.jackson.databind.ObjectMapper at java

fasterxml serialize using toString and deserialize using String constructor

[亡魂溺海] 提交于 2019-12-03 07:55:26
I have a POJO which looks something like this: public class Thing { private final int x; private final int y; private final int z; public Thing(String strThing) { // parse strThing which is in some arbitrary format to set x, y and z } @Override public String toString() { // return a string representation of thing // (same format as that parsed by the constructor) } @Override public boolean equals(Object obj) ... @Override public int hashCode() ... } and I want to use it as a key for a map (e.g. HashMap<Thing, SomeOtherPOJO> ) which, when serializing to json, uses the toString() representation

Generate JSON schema from java class

ぐ巨炮叔叔 提交于 2019-12-03 04:14:37
I have a POJO class public class Stock{ int id; String name; Date date; } Are there any annotations or development framework/api that can convert POJO to JSON schema like below {"id": { "type" : "int" }, "name":{ "type" : "string" } "date":{ "type" : "Date" } } and also i can expand the schema to add information like "Required" : "Yes", description for each field, etc., by specifying some annotations or configurations on POJO and can generate JSON Schema like below. {"id": { "type" : "int", "Required" : "Yes", "format" : "id must not be greater than 99999", "description" : "id of the stock" },

Unable to deserialize Json that contain 2 objects with the same ID using jackson

北城余情 提交于 2019-12-02 18:06:38
问题 I have used jackson JsonIdentityInfo to handle the recursive object reference in spring mvc. I came across one issue i.e., Unable to deserialize Json that contain 2 objects with the same ID. { "organizations": [ { "organizationId": 1, "organizationName": "org1", "enterprise": { "enterpriseId": 1, "enterpriseName": "ent1", "organizations": null } }, { "organizationId": 2, "organizationName": "org2", "enterprise": 1 } ] } if you see above, both organizations are mapped with enterprise "1". For

Unable to deserialize Json that contain 2 objects with the same ID using jackson

你。 提交于 2019-12-02 11:33:27
I have used jackson JsonIdentityInfo to handle the recursive object reference in spring mvc. I came across one issue i.e., Unable to deserialize Json that contain 2 objects with the same ID. { "organizations": [ { "organizationId": 1, "organizationName": "org1", "enterprise": { "enterpriseId": 1, "enterpriseName": "ent1", "organizations": null } }, { "organizationId": 2, "organizationName": "org2", "enterprise": 1 } ] } if you see above, both organizations are mapped with enterprise "1". For the first organization it is whole enterprise object but for organization 2, it is giving ID only. I