高端t恤定制网站,全国可信网站,国家对地理信息网站建设的重视,北京外包推广txt文件在linux环境下打开呈现了乱码状态。 解决方法1#xff1a;在linux用iconv命令#xff0c;如乱码文件名为zhongwen.txt#xff0c;那么在终端输入如下命令#xff1a; iconv -f gbk -t utf8 zhongwen.txt zhongwen.txt.utf8 如果eclipse打开后仍是乱码#xff…txt文件在linux环境下打开呈现了乱码状态。 解决方法1在linux用iconv命令如乱码文件名为zhongwen.txt那么在终端输入如下命令 iconv -f gbk -t utf8 zhongwen.txt zhongwen.txt.utf8 如果eclipse打开后仍是乱码则需进入preferrence,修改默认编码格式为utf-8 解决方法2如果需要批量的将gbk文件转成utf8文件则需要编写如下java程序 package classifier; import java.io.IOException; import org.apache.hadoop.conf.Configuration;import org.apache.hadoop.fs.FileStatus;import org.apache.hadoop.fs.FileSystem;import org.apache.hadoop.fs.Path;import org.apache.hadoop.io.IntWritable;import org.apache.hadoop.io.NullWritable;import org.apache.hadoop.io.Text;import org.apache.hadoop.mapreduce.Job;import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;import org.apache.hadoop.mapreduce.lib.input.KeyValueTextInputFormat;import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;import org.apache.mahout.classifier.bayes.BayesParameters; public class ClassifierDriver { public static void main(String[] args) throws Exception { // set bayes parameter BayesParameters params new BayesParameters(); params.setBasePath(args[2]); params.set(classifierType, args[3]); params.set(alpha_i, 1.0); params.set(defaultCat, unknown); params.setGramSize(1); // set configuration Configuration conf new Configuration(); conf.set(bayes.parameters, params.toString()); // create job Job job new Job(conf,Classifier); job.setJarByClass(ClassifierDriver.class); // specify input format job.setInputFormatClass(KeyValueTextInputFormat.class); // specify mapper reducer job.setMapperClass(classifier.ClassifierMapper.class); job.setReducerClass(ClassifierReducer.class); // specify output types of mapper and reducer job.setOutputKeyClass(NullWritable.class); job.setOutputValueClass(Text.class); job.setMapOutputKeyClass(Text.class); job.setMapOutputValueClass(IntWritable.class); // specify input and output DIRECTORIES Path inPath new Path(args[0]); Path outPath new Path(args[1]); FileInputFormat.addInputPath(job, inPath); FileOutputFormat.setOutputPath(job,outPath); // output path // delete output directory try{ FileSystem hdfs outPath.getFileSystem(conf); if(hdfs.exists(outPath)) hdfs.delete(outPath); hdfs.close(); } catch (Exception e){ e.printStackTrace(); return ; } // run the job System.exit(job.waitForCompletion(true) ? 0 : 1); } }转载于:https://www.cnblogs.com/mlj5288/p/4439159.html
