hadoop - 编译Pig Bank UDF错误

Question

构建文件:C:\ my \ work \ PigBank \ contrib \ piggybank \ java \ build.xml

init:

compile:
     [echo]  *** Compiling Pig UDFs ***
    [javac] Compiling 159 source files to C:\my\work\PigBank\contrib\piggybank\java\build\classes
    [javac] warning: [options] bootstrap class path not set in conjunction with -source 1.6
    [javac] C:\my\work\PigBank\contrib\piggybank\java\src\main\java\org\apache\pig\piggybank\evaluation\IsInt.j
    [javac]  * Note this function checks for Integer range 鈭?,147,483,648 to 2,147,483,647.
    [javac]                                                 ^
    [javac] 1 error
    [javac] 1 warning

BUILD FAILED

Answer 1

确保在基本目录

上运行ant

然后打开:PigBank\contrib\piggybank\java\src\main\java\org\apache\pig\piggybank\evaluation\IsInt.java并编辑第31行:

29 /**
30 * This UDF is used to check whether the String input is an Integer.
31 * Note this function checks for Integer range −2,147,483,648 to 2,147,483,647.
32 * If range is not important, use IsNumeric instead if you would like to check if     a String 33 is numeric. 
34 * Also IsNumeric performs slightly better compared to this function.
35 */

只需删除第48列上的不可打印字符并保存文件即可。

再次运行ant命令。