结论:org.json.JSONObject的getString如果取不到对应的key会抛出异常,optString则不会 /** * Returns the value mapped by {@code name} if it exists, coercing it if * necessary, or throws if no such mapping exists. * * @throws JSONException if no such mapping exists. */ public…
18/12/07 01:09:03 INFO mapreduce.ImportJobBase: Beginning import of staffException in thread "main" java.lang.NoClassDefFoundError: org/json/JSONObject at org.apache.sqoop.util.SqoopJsonUtil.getJsonStringforMap(SqoopJsonUtil.java:42) at org.apac…
自己在搭建SSM框架的时候(Spring + spring mvc + mybatis)报错内容如下: No serializer found for class org.json.JSONObject and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) 报错的意思是用的这个JSONObject对象由…
Question: Found multiple occurrences of org.json.JSONObject on the class path: jar:file:/C:/Users/nmj/.m2/repository/com/vaadin/external/google/android-json/0.0.20131108.vaadin1/android-json-0.0.20131108.vaadin1.jar!/org/json/JSONObject.class jar:fil…
WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead. Exception in thread "main" java.lang.NoClassDefFoundError: org/json/JSONObject at org.apache.sqoop.util.SqoopJsonUtil.getJsonStrin…