Kettle解析JSON错误

标签：

最近公司要从聚石塔上抽取数据，其中有JSON格式数据，所以学习一下Kettle解析JSON,碰到小小问题，记录一下：

（1）

2015/07/15 15:22:48 - trade_detail.0 - ERROR (version 5.4.0.1-130, build 1 from 2015-06-14_12-34-55 by buildguy) : Unexpected Error : org.pentaho.di.core.exception.KettleException:
2015/07/15 15:22:48 - trade_detail.0 - The data structure is not the same inside the resource! We found 2 values for json path [$..title], which is different that the number returned for path [$..buyer_alipay_no] (1 values). We MUST have the same number of values for all paths.
2015/07/15 15:22:48 - trade_detail.0 - ERROR (version 5.4.0.1-130, build 1 from 2015-06-14_12-34-55 by buildguy) : org.pentaho.di.core.exception.KettleException:
2015/07/15 15:22:48 - trade_detail.0 - The data structure is not the same inside the resource! We found 2 values for json path [$..title], which is different that the number returned for path [$..buyer_alipay_no] (1 values). We MUST have the same number of values for all paths.
2015/07/15 15:22:48 - trade_detail.0 -

原因是由于JSON嵌套内的对象还有同样的title，所以无法解析。
方法：
在外面这层用javascript解析，然后重命名，继续往下用JSON控件解析...

JAVASCRIPT代码：

var data = JSON.parse(trade);
var alipay_id = data.alipay_id;
var buyer_alipay_no = data.buyer_alipay_no;
var seller_nick = data.seller_nick;
var orders1 = data.orders;
var title1 = data.title;
var logistics_company1 = data.title;

（2）

2015/07/15 15:30:48 - trade_detail.0 - ERROR (version 5.4.0.1-130, build 1 from 2015-06-14_12-34-55 by buildguy) : Unexpected Error : org.pentaho.di.core.exception.KettleException:
2015/07/15 15:30:48 - trade_detail.0 - org.pentaho.di.core.exception.KettleException:
2015/07/15 15:22:48 - trade_detail.0 -
2015/07/15 15:22:48 - trade_detail.0 -
2015/07/15 15:22:48 - trade_detail.0 -We can not find and data with path [$..logistics_company]
原因:JSON中存在不完整的字段，无法解析。
方法：
1、用javascript脚本读取内容
2、勾选json控件-->内容-->设置忽视不完整的路径

Kettle解析JSON错误

标签：

原文地址：http://www.cnblogs.com/kenwong/p/4651364.html