jackson

Jackson XML - deserializing XML with namespace prefixes

由 倾然丶 夕夏残阳落幕 提交于 2021-01-27 04:26:57
问题 I'm working with the Jackson XML plugin (https://github.com/FasterXML/jackson-dataformat-xml), and I'm not sure if it's supported, but I'm wondering if it's possible to both serialize and deserialize XML with namespace prefixes, like so: <name:Foo> <name:Bar> <name:x>x</name:x> <name:y>y</name:y> </name:Bar> </name:Foo> I can generate this type of XML using Jackson's plugin like so: @JacksonXmlProperty(localName="name:Bar") public Bar getBar() { return bar; } However, I can't find a way to

How to serialize boolean to JSON as strings using Jackson

由 拜拜、爱过 提交于 2021-01-26 07:59:51
问题 We have developed a REST service using Jersey JAX-RS and Jackson (version 2.1.5) for JSON serialization. As the application is supposed to be a drop-in replacement for the older legacy service acting as a backend to an existing mobile app, we need to do some tweaking to the way Jackson serializes boolean values. Existing mobile app expects boolean values to be expressed as strings of "true" and "false" like this: {"Foo":"true","Bar":"false"} So I have searched for a way to influence the

“Provider com.fasterxml.jackson.module.jaxb.JaxbAnnotationModule not found” after Spring Boot Upgrade

由 不羁岁月 提交于 2021-01-26 03:31:25
问题 I get this exception message after upgrading Spring Boot from 2.1.5 to 2.2.2, when I try to start the Application. Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'feignContract' defined in org.springframework.cloud.openfeign.FeignClientsConfiguration: Unsatisfied dependency expressed through method 'feignContract' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name

How to make Jackson ignore properties if the getters throw exceptions

由 自作多情 提交于 2021-01-26 03:22:18
问题 I have a multitude of classes coming from a vendor that like to randomly throw RuntimeExceptions on property access. public Object getSomeProperty() { if (!someObscureStateCheck()) { throw new IllegalStateExcepion(); } return calculateTheValueOfProperty(someRandomState); } I cannot change the classes, cannot add annotations and it's unrealistic to define mixins for every single class as this part of stack changes fairly often. How do I make Jackson ignore a property if its getter throws an

How to make Jackson ignore properties if the getters throw exceptions

由 北城以北 提交于 2021-01-26 03:22:07
问题 I have a multitude of classes coming from a vendor that like to randomly throw RuntimeExceptions on property access. public Object getSomeProperty() { if (!someObscureStateCheck()) { throw new IllegalStateExcepion(); } return calculateTheValueOfProperty(someRandomState); } I cannot change the classes, cannot add annotations and it's unrealistic to define mixins for every single class as this part of stack changes fairly often. How do I make Jackson ignore a property if its getter throws an

Why discriminator property gets serialized twice?

由 心已入冬 提交于 2021-01-23 06:14:11
问题 I'm using OpenAPI 3.0 inheritance in components schemas and I have the (Java) classes generated by openapi-generator (which uses Jackson). Why the discriminator property gets serialized twice in the resulting JSON? This is a JHipster API-First project, which should use openapi-generator for generating the Java model (POJOs with Jackson annotations) and API controllers (interfaces with Spring's @Api annotations). By following the OpenAPI 3.x documentation/examples, it seems that the property

mvn dependency:tree 使用详解

由 亡梦爱人 提交于 2021-01-22 21:13:02
Maven Dependency插件Goal tree分析工程artifacts依赖 来自 https://maven.apache.org/plugins/maven-dependency-plugin/tree-mojo.html 常用Optional Parameters 常用参数，可在命令行中作用 -D参数名=参数值指定 appendOutput:追加输出，而不是覆盖 excludes，includes：通过逗号分离，格式[groupId]:[artifactId]:[type]:[version]，支持通配符* outputFile：指定输出文件路径 outputType：指定输出文件格式，默认text，还支持dot,graphml,tgf 输出工程依赖关系 mvn dependency:tree 重定向至文本文件 mvn dependency:tree -D outputFile=dependency_tree.txt mvn dependency:tree -Dverbose -D outputFile=dependency_tree.txt graphml格式，可使用Gephi打开，官网链接 https://gephi.org/ 或者使用yWorks的GraphMLViewer，需要嵌入浏览器中，这个比较小，只有1.1MB，https://www.yworks

How to read single JSON field with Jackson

由 …衆ロ難τιáo~ 提交于 2021-01-22 10:35:09
问题 I have a fairly large JSON response in which I'm interested in single field - status : { "title": "Some title", "status": "pending", "data": { ... }, "meta": { ... } } All I need to do is read the status value of the JSON response as string. I would prefer to not have to build a POJO to model it, because in my application I just need to store the JSON in a database on a particular status or discard it. The application already uses Jackson for other more complicated cases so I'd prefer to

How to read single JSON field with Jackson

由 我与影子孤独终老i 提交于 2021-01-22 10:34:29
问题 I have a fairly large JSON response in which I'm interested in single field - status : { "title": "Some title", "status": "pending", "data": { ... }, "meta": { ... } } All I need to do is read the status value of the JSON response as string. I would prefer to not have to build a POJO to model it, because in my application I just need to store the JSON in a database on a particular status or discard it. The application already uses Jackson for other more complicated cases so I'd prefer to

使用Jackson解析属性首字母为大写的JSON串问题解决

由 ぐ巨炮叔叔 提交于 2021-01-21 05:37:39
面对不遵守驼峰命名规则的接口咋办？当然首先要吐槽一下，不过接口是别人定的，虽然看着不爽但还是得去适配，比如 cardNumber ,他返回的叫 {CARDNUMBER:''} 。 这样导致使用Jackson解析出来的对象的属性均为空，经过跟踪源码发现，是由于其根据getters方法解析的属性，属性字母都变为了小写,这就导致无法解析了出现了 jackson Unrecognized field 的问题。 通过对API的研究可以通过 @JsonProperty 以及 @JsonAutoDetect 来实现。 具体如下看代码 @JsonAutoDetect(JsonMethod.FIELD) public class ApiParameter implements Serializable { private static final long serialVersionUID = 1L; @JsonProperty("NAME") private String name; @JsonProperty("CARDNUMBER") private String cardNumber; } @JsonProperty("CARDNUMBER") 顾名思义，就是显示指定字段的别名，不管是输入还是输出都是这个名字。 来源： oschina 链接： https://my.oschina.net/u
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