原因: entity实体中存在@OneToMany,@ManyToOne注解,在转化json是产生了循环引用 报的错误 解决方法: springmvc @ResponseBody 默认的json转化用的是 org.codehaus.jackson 这里两个实体类: 假如A对B 是一对多双向关联 死循环原因: JSON无法对A的属性List<B>进去JSON转换 在A实体类上加注释@JsonIgnoreProperties(value={"引用List<B>的变量名&quo…
2011-08-16 13:26:58,484 [http-8080-1] ERROR [core.web.ExceptionInterceptor] - org.codehaus.jackson.map.JsonMappingException: No serializer found for class org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer and no properties discovered to cre…
Jackson对于date的反序列化只支持几种,如果不符合默认格式则会报一下错误 org.codehaus.jackson.map.JsonMappingException: Can not construct instance of java.util.Date from String value '2012-12-12 12:01:01': not a valid representation (error: Can not parse date "2012-12-12 12:01:01&q…
Jackson对于date的反序列化只支持几种,如果不符合默认格式则会报一下错误 org.codehaus.jackson.map.JsonMappingException: Can not construct instance of java.util.Date from String value '2012-12-12 12:01:01': not a valid representation (error: Can not parse date "2012-12-12 12:01:01&q…
Exception in thread "main" java.lang.NoClassDefFoundError: org/codehaus/jackson/map/JsonMappingException at org.apache.hadoop.mapreduce.Job$1.run(Job.java:563) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.…
org.codehaus.jackson.map.JsonMappingException: Can not construct instance of java.util.Date from String value '2012-12-12 12:01:01': not a valid representation (error: Can not parse date "2012-12- - 故宫博物院 - 博客园https://www.cnblogs.com/suizhikuo/p/8393…
报错背景: CDH集成sqoop2服务之后,创建好link和job之后,执行job的时候报错. 报错现象: sqoop:> start job -j Exception has occurred during processing command Exception: org.apache.sqoop.common.SqoopException Message: CLIENT_0001:Server has returned exception - <html>< - Error…
报错背景: 执行hdfs-mysql的job任务的时候报错. 报错现象: Exception has occurred during processing command Exception: org.apache.sqoop.common.SqoopException Message: CLIENT_0001:Server has returned exception - <html>< - Error report</title><style><!--H…
The following code examples are extracted from open source projects. You can click  to vote up the examples that are useful to you. Example 1 From project rest-support, under directory /hudson-rest-common/src/main/java/org/hudsonci/rest/common/. Sour…
说是解决,其实不是很完美的解决的,写出来只是想记录一下这个问题或者看一下有没有哪位仁兄会的,能否知道一二. 下面说说出现问题: 问题是这样的,当我查询一个一对多的实体的时候,工具直接就爆了,差不多我就猜到是哪里死循环了,最后等了好久,查看原因,果然是堆溢出,再然后是jsckson的错误.那么必然是序列化的问题了. 这是jackson的错误: at java.security.AccessController.doPrivileged(Native Method) at java.net.URLC…