json-lib出现There is a cycle in the hierarchy解决办法

解决办法

1.设置JSON-LIB让其过滤掉引起循环的字段。

Java代码
复制代码 代码如下:
JsonConfig config = new JsonConfig();
config.setIgnoreDefaultExcludes(false);
config.setCycleDetectionStrategy(CycleDetectionStrategy.LENIENT);
config.registerJsonValueProcessor(Date.class,new DateJsonValueProcessor("yyyy-MM-dd")); //date processor register
config.setExcludes(new String[]{//只要设置这个数组,指定过滤哪些字段。
"consignee",
"contract",
"coalInfo",
"coalType",
"startStation",
"balanceMan",
"endStation"
});
String tempStr = "{/"TotalRecords/":"+ total.toString() +",/"Datas/":"+JSONSerializer.toJSON(list,config).toString()+"}";
out.print(tempStr);
JsonConfig config = new JsonConfig();
config.setIgnoreDefaultExcludes(false);
config.setCycleDetectionStrategy(CycleDetectionStrategy.LENIENT);
config.registerJsonValueProcessor(Date.class,new DateJsonValueProcessor("yyyy-MM-dd")); //date processor register
config.setExcludes(new String[]{//只要设置这个数组,指定过滤哪些字段。 "consignee", "contract", "coalInfo", "coalType", "startStation", "balanceMan", "endStation" }); String tempStr = "{/"TotalRecords/":"+ total.toString() +",/"Datas/":"+JSONSerializer.toJSON(list,config).toString()+"}"; out.print(tempStr);

2.设置JSON-LIB的setCycleDetectionStrategy属性让其自己处理循环,省事但是数据过于复杂的话会引起数据溢出或者效率低下。
Java代码
[code]
JsonConfig config = new JsonConfig();
config.setIgnoreDefaultExcludes(false);
config.setCycleDetectionStrategy(CycleDetectionStrategy.LENIENT);
config.registerJsonValueProcessor(Date.class,new DateJsonValueProcessor("yyyy-MM-dd")); //date processor register
String tempStr = "{/"TotalRecords/":"+ total.toString() +",/"Datas/":"+JSONSerializer.toJSON(list,config).toString()+"}";
out.print(tempStr);

JavaScript技术json-lib出现There is a cycle in the hierarchy解决办法,转载需保留来源!

郑重声明:本文版权归原作者所有,转载文章仅为传播更多信息之目的,如作者信息标记有误,请第一时间联系我们修改或删除,多谢。