java.lang.ClassNotFoundException: com.fasterxml.jackson.annotation.JsonInclude$Value [英] java.lang.ClassNotFoundException: com.fasterxml.jackson.annotation.JsonInclude$Value

问题描述

我正在尝试将我的 json 字符串转换为 java 对象，但出现错误

I am trying to convert my json string to java object and I am getting error

线程main"中的异常 java.lang.NoClassDefFoundError: com/fasterxml/jackson/annotation/JsonInclude$Value在 com.fasterxml.jackson.databind.cfg.MapperConfig.(MapperConfig.java:45)在 com.fasterxml.jackson.databind.ObjectMapper.(ObjectMapper.java:535)在 com.fasterxml.jackson.databind.ObjectMapper.(ObjectMapper.java:452)在 com.allianz.cmis.util.ApacheHttpClientGet.main(ApacheHttpClientGet.java:65)引起:java.lang.ClassNotFoundException:com.fasterxml.jackson.annotation.JsonInclude$Value在 java.net.URLClassLoader$1.run(URLClassLoader.java:366)在 java.net.URLClassLoader$1.run(URLClassLoader.java:355)在 java.security.AccessController.doPrivileged(Native Method)在 java.net.URLClassLoader.findClass(URLClassLoader.java:354)在 java.lang.ClassLoader.loadClass(ClassLoader.java:425)在 sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)在 java.lang.ClassLoader.loadClass(ClassLoader.java:358)……还有4个

Exception in thread "main" java.lang.NoClassDefFoundError: com/fasterxml/jackson/annotation/JsonInclude$Value at com.fasterxml.jackson.databind.cfg.MapperConfig.(MapperConfig.java:45) at com.fasterxml.jackson.databind.ObjectMapper.(ObjectMapper.java:535) at com.fasterxml.jackson.databind.ObjectMapper.(ObjectMapper.java:452) at com.allianz.cmis.util.ApacheHttpClientGet.main(ApacheHttpClientGet.java:65) Caused by: java.lang.ClassNotFoundException: com.fasterxml.jackson.annotation.JsonInclude$Value at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ... 4 more

这是我的 json 字符串和我的代码片段

Here is my json string and my code snippet

json 字符串{'ctpnsw': [{'abc' , 'def' }]}

型号

public class Fields {

     private List<String> ctpnsw;

    public List<String> getCtpnsw() {
        return ctpnsw;
    }

    public void setCtpnsw(List<String> ctpnsw) {
        this.ctpnsw = ctpnsw;
    }

}

Java 代码

ObjectMapper mapper = new ObjectMapper();列表<字段>list = mapper.readValue(output, TypeFactory.defaultInstance().constructCollectionType(List.class,Fields.class));System.out.println(list);

推荐答案

如何将这个添加到你的 pom.xml

How about adding this to your pom.xml

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-annotations</artifactId>
    <version>${jackson.version}</version>
</dependency>

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