在android上使用simplexml解析数据时需要的值异常

Question

我正在使用simplexml解析来从网络中获取数据.解析它时显示以下错误.

错误:

org.simpleframework.xml.core.ValueRequiredException: Unable to satisfy @org.simpleframework.xml.ElementList(data=false, empty=true, entry=, inline=false, name=, required=true, type=void) on field 'jobs' private java.util.List com.example.simpledataparsing.JobList.jobs for class com.example.simpledata.line2

xml文件:

<?xml version="1.0" encoding="UTF-8" ?>
<joblist>
<job><id>75027</id><status>OPEN</status><customer>Manikandan</customer><address>asdf</address><city>salem</city><state>tn</state><zip>636005</zip><product>pipe</product><producturl></producturl><comments>asdf</comments></job>
</joblist>

pojo类:JobList.java

package com.example.simpledataparsing;

import java.util.List;
import org.simpleframework.xml.Element;
import org.simpleframework.xml.ElementList;
@Element (name="joblist")
public class JobList {

    @ElementList
    private List<Job> jobs;

    public List<Job> getJobs() {
        return jobs;
    }

    public void setJobs(List<Job> jobs) {
        this.jobs = jobs;
    }


}

Job.java

package com.example.simpledataparsing;

import org.simpleframework.xml.Element;
@Element (name = "job")
public class Job {

    @Element
    private int id;

}

Answer 1

您必须进行两次更正:

完全实现Job类

该课程没有完全实施; XML中的字段数多于实际类中的字段数.这将使类的反序列化失败.

只需将所有这些字段添加到您的班级并设置正确的注释.注意,producturl标记为,@Element(required = false)所以没有必需的值,它可以是空的(如在XML中).

@Element(name = "job")
public class Job
{
    @Element
    private int id;
    @Element
    private String status;
    @Element
    private String customer;
    @Element
    private String address;
    @Element
    private String city;
    @Element
    private String state;
    @Element
    private String zip;
    @Element
    private String product;
    @Element(required = false)
    private String producturl;
    @Element
    private String comments;

    // ...
}

更正JobList注释

XML包含内联侦听,您也必须inline在类中设置它.

@Element(name = "joblist")
public class JobList
{

    @ElementList(inline = true)
    private List<Job> jobs;

    // ...
}