線程「主」異常java.lang.NoSuchMethodError：org.apache.commons.beanutils.PropertyUtilsBean

Question

我想讀取屬性文件，並得到了以下給出的錯誤卡住了。我寫了一個Scala包，其中我試圖讀取屬性文件並調用abc.scala program.Any幫助將不勝感激。

文件： - xyz.properties

driver = "oracle.jdbc.driver.OracleDriver" 
url = "jdbc:oracle:thin:@xxxx:1521/xxxx.xxxx" 
username = "xxx" 
password = "xxx" 
input_file = "C:\\Users\\xxx\\test\\src\\main\\resources\\xxxx.xlsx" 

build.sbt

name := "xxx.xxxx.xxxxx" 

scalaVersion := "2.10.6" 

ivyScala := ivyScala.value map{ _.copy(overrideScalaVersion = true) } 


libraryDependencies ++= Seq(
"org.apache.spark" %% "spark-core" % "2.1.0", 
"com.databricks" %% "spark-csv" % "1.5.0", 
"org.apache.commons" % "commons-configuration2" % "2.1.1", 
"commons-beanutils" % "commons-beanutils" % "1.9.3", 
"org.apache.spark" %% "spark-sql" % "2.1.0", 
"org.scala-lang" % "scala-xml" % "2.11.0-M4" ) 

包

package com.xxx.zzzz.xxx1 

     import java.io.File 
     import org.apache.commons.configuration2.builder.fluent.{Configurations, Parameters} 


     object Configuration { 

      var config = new Configurations() 
      var configs = config.properties(new File("xyz.properties")) 

      var inputFile = configs.getString("input") 
      var userName = configs.getString("user_name") 
      var password = configs.getString("passwd") 
      var driver = configs.getString("driver") 
      var url = configs.getString("Url") 

     } 

主程序abc.scala

import org.apache.spark.{SparkConf, SparkContext} 
import org.apache.spark.sql.SQLContext 
import package com.xxx.zzzz.xxx1.Configurations 
import org.apache.commons.beanutils.PropertyUtils 


object ItalyPanelData { 
    def main(args: Array[String]): Unit = { 

     //Logger.getRootLogger().setLevel(Level.OFF) 

     println("Inside main program"+ Configuration.driver) 
     //Set the properties for spark to connect the oracle database 
     val dbProp = new java.util.Properties 
     dbProp.setProperty("driver", Configuration.driver) 
     dbProp.setProperty("user", Configuration.userName) 
     dbProp.setProperty("password", Configuration.password) 


     //Create a connection to connect spark 
     val conf = new SparkConf().setAppName("Simple Application").setMaster("local") 
     val sc = new SparkContext(conf) 
     val sqlContext = new SQLContext(sc) 

    //exception handlying 
    try { 
     //Create dataframe boject 
     val df = sqlContext.read 
     .option("location", Configuration.inputFile)  //Initiating input path 
     .option("sheetName", "xyz")      //Give the SheetName 
     .option("useHeader", "true")      //It takes the header name from excel sheet 
     .option("treatEmptyValuesAsNulls", "true") 
     .option("inferSchema", "true") 
     .option("addColorColumns", "false") 
     .load() 
     // Write into oracale database 
     df.write.mode("append").jdbc(Configuration.url, "xyz", dbProp) 
    } 
    catch { 

     case e: Throwable => e.printStackTrace(); 
    } 

     } 
} 

錯誤

Exception in thread "main" java.lang.NoSuchMethodError: org.apache.commons.beanutils.PropertyUtilsBean.addBeanIntrospector(Lorg/apache/commons/beanutils/BeanIntrospector;)V 
at org.apache.commons.configuration2.beanutils.BeanHelper.initBeanUtilsBean(BeanHelper.java:631) 
at org.apache.commons.configuration2.beanutils.BeanHelper.<clinit>(BeanHelper.java:89) 
at java.lang.Class.forName0(Native Method) 
at java.lang.Class.forName(Class.java:264) 
at com.sun.proxy.$Proxy0.<clinit>(Unknown Source) 
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) 
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) 
at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:739) 
at org.apache.commons.configuration2.builder.fluent.Parameters.createParametersProxy(Parameters.java:294) 
at org.apache.commons.configuration2.builder.fluent.Parameters.fileBased(Parameters.java:185) 
at org.apache.commons.configuration2.builder.fluent.Configurations.fileParams(Configurations.java:602) 
at org.apache.commons.configuration2.builder.fluent.Configurations.fileParams(Configurations.java:614) 
at org.apache.commons.configuration2.builder.fluent.Configurations.fileBasedBuilder(Configurations.java:132) 
at org.apache.commons.configuration2.builder.fluent.Configurations.propertiesBuilder(Configurations.java:238) 
at org.apache.commons.configuration2.builder.fluent.Configurations.properties(Configurations.java:282) 
at com.rxcorp.italy.config.Configuration$.<init>(Configuration.scala:8) 
at com.rxcorp.italy.config.Configuration$.<clinit>(Configuration.scala) 
at com.rxcorp.paneldataloading.ItalyPanelData$.main(abc.scala:12) 

Answer 1

此類異常表示版本不兼容。

含義：你所編寫的代碼（或更可能：表面下的圖書館之一）要調用的方法

org.apache.commons.beanutils.PropertyUtilsBean.addBeanIntrospector(BeanIntrospector[]); 

但事情是：在運行，類PropertyUtilsBean的文件不包含該方法。

因此：您必須退後一步並理解堆棧中的組件，並查看它們在Apache commons庫上的版本要求。

當你看到javadoc的時候，你會得到更多的想法method;因爲它說：因爲：1.9那裏。

換句話說：這個方法被加入了Apache commons 1.9;所以你的一堆預計至少就是版本的公域;但是執行整個事件的JVM中的類路徑...具有較舊的版本。

所以：檢查Apache的公共類路徑;並且很可能你只需更新到較新版本的Apache公共版即可。 （是的，也許這意味着更多的「硬」調試工作;至少你的構建設置包括更新版本的Apache公共版）。