org.svenson.JSONProperty以排除动态属性

Question

我有一个Java应用程序与CouchDB一起工作。为了解析JSON，我使用lib：com.google.code.svenson v.1.3.8 但是，我遇到了问题。我收到JSON，并且我想排除它中的一个属性。举例：

{"groups":[], "norms":[], "unit":null, "_attachments":{ 
    "revision/1-b7c9e44edecb4c6509ce75d84d3aa06d":{ 
     "content_type":"application/json", 
     "revpos":2, 
     "digest":"md5-qPtWsDPF7vQANTQvQzmjrA==", 
     "length":684, 
     "stub":true 
    } 
}} 

我需要排除“_attachments”领域和所有内件。但问题是，该属性修订版是动态的。它随时都在变化。而我的代码不起作用：

public class TestDTO { 

    private String attachment; 
    private String revision; 
    private String contentType; 
    private String revpos; 
    private String digest; 
    private String length; 
    private String stub; 

    @JSONProperty(ignore = true, value = "_attachments") 
    public void setAttachment(String attachment) { 
     this.attachment = attachment; 
    } 

    public String getRevision() { 
     return revision; 
    } 

    @JSONProperty(ignore = true, value = "revision/") 
    public void setRevision(String revision) { 
     this.revision = revision; 
    } 
//other get/set methods 
} 

org.svenson.JSONParseException: Cannot set property revision/1-d009693fd000f179495cb3f9087109b6 on class java.lang.String 
    at org.svenson.JSONParser.parseObjectInto(JSONParser.java:589) 
    at org.svenson.JSONParser.parseObjectInto(JSONParser.java:617) 
    at org.svenson.JSONParser.parse(JSONParser.java:396) 
    at org.svenson.JSONParser.parse(JSONParser.java:341) 
    at com.foo.core.api.services.bar.BarObjectParser.parseToObject(BarObjectParser.java:47) 
    at com.foo.core.api.services.bar.task.ChangesProcessorTask.persistObject(ChangesProcessorTask.java:78) 
    at com.foo.core.api.services.bar.task.ChangesProcessorTask.processChange(ChangesProcessorTask.java:65) 
    at com.foo.core.api.services.bar.task.ChangesProcessorTask.processChanges(ChangesProcessorTask.java:46) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:273) 
    at org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:264) 
    at org.springframework.scheduling.quartz.QuartzJobBean.execute(QuartzJobBean.java:86) 
    at org.quartz.core.JobRunShell.run(JobRunShell.java:202) 
    at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:525) 

Answer 1

是的，你可以做到这一点。您所需要的只是将地址列表声明为您业务对象中的瞬态属性。

然后将下面的代码添加到您的jsonConfig：

JsonConfig jsonConfig = new JsonConfig(); 
jsonConfig.setIgnoreTransientFields(true);