I have a .csv file for Unloco code and I want to search if a specific port code exists in the .csv file.
File:
ADALV,Andorra la Vella,,,4230N 00131E
ADCAN,Canillo,,,4234N 00135E
you can iterate all lines in your file with this kind of code:
def f = new File(myfile)
f.withReader("UTF-8"){ r->
r.splitEachLine( ',' ){ line->
if(line[0]=='ADCAN'){
println "found: $line"
}
}
}
如果您只是想知道文件中存在代码,而又不关心在哪里可以执行以下操作,则text
方法会将整个文件读取为字符串,但是如果处理大型文件,则效果不佳。
new File( 'myfile.csv' ).text.contains( 'ADCAN' )
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