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javac编译时找不到符号?

0
悬赏园豆:10 [待解决问题]

             我是个新手,在linux使用java编程时,出现这个情况。

            我把要引的包放在classpath中,红色部分:

           export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$HADOOP_HOME/hadoop-1.0.4.core.jar:${CLASSPATH}

           通过echo $CLASSPATH查看也能输出结果。

            mport org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Job;
import  org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.mapreduce.Reducer;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
public class wordcount {
        public static class  WordCountMapper extends  Mapper<Object, Text,Text,IntWritable>
        {
                private final static  IntWritable one=new IntWritable(1);
                private  Text word=new Text();
                public void map(Object key, Text value,Context context)   throws  IOException,InterruptedException{
                            String[]  words=value.toString().split(" ");
                            for(String  str  :  words)
                            {
                                  word.set(str);
                                 context.write(word,one);
                            }
                   }
        }
        
        public static class WordCountReducer  extends  Reducer<Text,IntWritable,Text,IntWritable>{
                  public void  reduce(Text key,Iterable<IntWritable> values,Context context) throws IOException,InterruptedException
                  {
                          int total =0;
                          for(IntWritable  val1  : values)
                          {
                               total++;
                          }
                          context.write(key,new IntWritable(total));
                  }
        }
        public static void main(String[] args) throws  Exception {
            Configuration conf1=new Configuration();
            Job job=new Job(conf1,"word count");
                  job.setJarByClass(wordcount.class);
                  job.setMapperClass(WordCountMapper.class);
                  job.setReducerClass(WordCountReducer.class);
                  job.setOutputKeyClass(Text.class);
                  job.setOutputValueClass(IntWritable.class);
                  FileInputFormat.addInputPath(job, new Path(args[0]));
                  FileOutputFormat.setOutputPath(job, new Path(args[1]));
                  System.exit(job.waitForCompletion(true ) ? 0:1);
        }
}

 

使用javac wordcount.java 编译出现:

           [解析开始时间 RegularFileObject[wordcount.java]]
[解析开始时间 RegularFileObject[wordcount.java]]
[解析已完成, 用时 24 毫秒]
[源文件的搜索路径: .,/usr/lib/jvm/jdk1.8.0_73/lib/dt.jar,/usr/lib/jvm/jdk1.8.0_73/lib/tools.jar]
[类文件的搜索路径: /usr/lib/jvm/jdk1.8.0_73/jre/lib/resources.jar,/usr/lib/jvm/jdk1.8.0_73/jre/lib/rt.jar,/usr/lib/jvm/jdk1.8.0_73/jre/lib/sunrsasign.jar,/usr/lib/jvm/jdk1.8.0_73/jre/lib/jsse.jar,/usr/lib/jvm/jdk1.8.0_73/jre/lib/jce.jar,/usr/lib/jvm/jdk1.8.0_73/jre/lib/charsets.jar,/usr/lib/jvm/jdk1.8.0_73/jre/lib/jfr.jar,/usr/lib/jvm/jdk1.8.0_73/jre/classes,/usr/lib/jvm/jdk1.8.0_73/jre/lib/ext/jaccess.jar,/usr/lib/jvm/jdk1.8.0_73/jre/lib/ext/sunpkcs11.jar,/usr/lib/jvm/jdk1.8.0_73/jre/lib/ext/zipfs.jar,/usr/lib/jvm/jdk1.8.0_73/jre/lib/ext/dnsns.jar,/usr/lib/jvm/jdk1.8.0_73/jre/lib/ext/jfxrt.jar,/usr/lib/jvm/jdk1.8.0_73/jre/lib/ext/nashorn.jar,/usr/lib/jvm/jdk1.8.0_73/jre/lib/ext/sunec.jar,/usr/lib/jvm/jdk1.8.0_73/jre/lib/ext/localedata.jar,/usr/lib/jvm/jdk1.8.0_73/jre/lib/ext/cldrdata.jar,/usr/lib/jvm/jdk1.8.0_73/jre/lib/ext/sunjce_provider.jar,.,/usr/lib/jvm/jdk1.8.0_73/lib/dt.jar,/usr/lib/jvm/jdk1.8.0_73/lib/tools.jar/usr/local/Hadoop/hadoop-1.0.4.core.jar]


wordcount.java:2: 错误: 程序包org.apache.hadoop.conf不存在
import org.apache.hadoop.conf.Configuration;
                             ^
wordcount.java:3: 错误: 程序包org.apache.hadoop.fs不存在
import org.apache.hadoop.fs.Path;
                           ^
wordcount.java:4: 错误: 程序包org.apache.hadoop.io不存在
import org.apache.hadoop.io.IntWritable;
                           ^
wordcount.java:5: 错误: 程序包org.apache.hadoop.io不存在
import org.apache.hadoop.io.Text;
                           ^
wordcount.java:6: 错误: 程序包org.apache.hadoop.mapreduce不存在
import org.apache.hadoop.mapreduce.Job;
                                  ^
wordcount.java:7: 错误: 程序包org.apache.hadoop.mapreduce不存在
import  org.apache.hadoop.mapreduce.Mapper;
                                   ^
wordcount.java:8: 错误: 程序包org.apache.hadoop.mapreduce不存在
import org.apache.hadoop.mapreduce.Reducer;
                                  ^
wordcount.java:9: 错误: 程序包org.apache.hadoop.mapreduce.lib.input不存在
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
                                            ^
wordcount.java:10: 错误: 程序包org.apache.hadoop.mapreduce.lib.output不存在
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
                                             ^
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Object.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/String.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Exception.class)]]
wordcount.java:12: 错误: 找不到符号
        public static class  WordCountMapper extends  Mapper<Object, Text,Text,IntWritable>
                                                      ^
  符号:   类 Mapper
  位置: 类 wordcount
wordcount.java:12: 错误: 找不到符号
        public static class  WordCountMapper extends  Mapper<Object, Text,Text,IntWritable>
                                                                     ^
  符号:   类 Text
  位置: 类 wordcount
wordcount.java:12: 错误: 找不到符号
        public static class  WordCountMapper extends  Mapper<Object, Text,Text,IntWritable>
                                                                          ^
  符号:   类 Text
  位置: 类 wordcount
wordcount.java:12: 错误: 找不到符号
        public static class  WordCountMapper extends  Mapper<Object, Text,Text,IntWritable>
                                                                               ^
  符号:   类 IntWritable
  位置: 类 wordcount
wordcount.java:14: 错误: 找不到符号
                private final static  IntWritable one=new IntWritable(1);
                                      ^
  符号:   类 IntWritable
  位置: 类 WordCountMapper
wordcount.java:15: 错误: 找不到符号
                private  Text word=new Text();
                         ^
  符号:   类 Text
  位置: 类 WordCountMapper
wordcount.java:16: 错误: 找不到符号
                public void map(Object key, Text value,Context context)   throws  IOException,InterruptedException{
                                            ^
  符号:   类 Text
  位置: 类 WordCountMapper
wordcount.java:16: 错误: 找不到符号
                public void map(Object key, Text value,Context context)   throws  IOException,InterruptedException{
                                                       ^
  符号:   类 Context
  位置: 类 WordCountMapper
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/io/IOException.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/InterruptedException.class)]]
wordcount.java:26: 错误: 找不到符号
        public static class WordCountReducer extends Reducer<Text,IntWritable,Text,IntWritable>{
                                                     ^
  符号:   类 Reducer
  位置: 类 wordcount
wordcount.java:26: 错误: 找不到符号
        public static class WordCountReducer extends Reducer<Text,IntWritable,Text,IntWritable>{
                                                             ^
  符号:   类 Text
  位置: 类 wordcount
wordcount.java:26: 错误: 找不到符号
        public static class WordCountReducer extends Reducer<Text,IntWritable,Text,IntWritable>{
                                                                  ^
  符号:   类 IntWritable
  位置: 类 wordcount
wordcount.java:26: 错误: 找不到符号
        public static class WordCountReducer extends Reducer<Text,IntWritable,Text,IntWritable>{
                                                                              ^
  符号:   类 Text
  位置: 类 wordcount
wordcount.java:26: 错误: 找不到符号
        public static class WordCountReducer extends Reducer<Text,IntWritable,Text,IntWritable>{
                                                                                   ^
  符号:   类 IntWritable
  位置: 类 wordcount
wordcount.java:27: 错误: 找不到符号
                  public void  reduce(Text key,Iterable<IntWritable> values,Context context) throws IOException,InterruptedException
                                      ^
  符号:   类 Text
  位置: 类 WordCountReducer
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Iterable.class)]]
wordcount.java:27: 错误: 找不到符号
                  public void  reduce(Text key,Iterable<IntWritable> values,Context context) throws IOException,InterruptedException
                                                        ^
  符号:   类 IntWritable
  位置: 类 WordCountReducer
wordcount.java:27: 错误: 找不到符号
                  public void  reduce(Text key,Iterable<IntWritable> values,Context context) throws IOException,InterruptedException
                                                                            ^
  符号:   类 Context
  位置: 类 WordCountReducer
[正在检查wordcount]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/io/Serializable.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/AutoCloseable.class)]]
wordcount.java:14: 错误: 找不到符号
                private final static  IntWritable one=new IntWritable(1);
                                                          ^
  符号:   类 IntWritable
  位置: 类 WordCountMapper
wordcount.java:15: 错误: 找不到符号
                private  Text word=new Text();
                                       ^
  符号:   类 Text
  位置: 类 WordCountMapper
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Throwable.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Byte.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Character.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Short.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Long.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Float.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Integer.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Double.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Boolean.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Void.class)]]
wordcount.java:30: 错误: 找不到符号
                          for(IntWritable  val1  : values)
                              ^
  符号:   类 IntWritable
  位置: 类 WordCountReducer
wordcount.java:34: 错误: 找不到符号
                          context.write(key,new IntWritable(total));
                                                ^
  符号:   类 IntWritable
  位置: 类 WordCountReducer
wordcount.java:38: 错误: 找不到符号
            Configuration conf1=new Configuration();
            ^
  符号:   类 Configuration
  位置: 类 wordcount
wordcount.java:38: 错误: 找不到符号
            Configuration conf1=new Configuration();
                                    ^
  符号:   类 Configuration
  位置: 类 wordcount
wordcount.java:39: 错误: 找不到符号
            Job job=new Job(conf1,"word count");
            ^
  符号:   类 Job
  位置: 类 wordcount
wordcount.java:39: 错误: 找不到符号
            Job job=new Job(conf1,"word count");
                        ^
  符号:   类 Job
  位置: 类 wordcount
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Class.class)]]
wordcount.java:43: 错误: 找不到符号
                  job.setOutputKeyClass(Text.class);
                                        ^
  符号:   类 Text
  位置: 类 wordcount
wordcount.java:44: 错误: 找不到符号
                  job.setOutputValueClass(IntWritable.class);
                                          ^
  符号:   类 IntWritable
  位置: 类 wordcount
wordcount.java:45: 错误: 找不到符号
                  FileInputFormat.addInputPath(job, new Path(args[0]));
                                                        ^
  符号:   类 Path
  位置: 类 wordcount
wordcount.java:45: 错误: 找不到符号
                  FileInputFormat.addInputPath(job, new Path(args[0]));
                  ^
  符号:   变量 FileInputFormat
  位置: 类 wordcount
wordcount.java:46: 错误: 找不到符号
                  FileOutputFormat.setOutputPath(job, new Path(args[1]));
                                                          ^
  符号:   类 Path
  位置: 类 wordcount
wordcount.java:46: 错误: 找不到符号
                  FileOutputFormat.setOutputPath(job, new Path(args[1]));
                  ^
  符号:   变量 FileOutputFormat
  位置: 类 wordcount
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/System.class)]]
[共 363 毫秒]
39 个错误


wordcount.java:2: 错误: 程序包org.apache.hadoop.conf不存在
import org.apache.hadoop.conf.Configuration;
                             ^
wordcount.java:3: 错误: 程序包org.apache.hadoop.fs不存在
import org.apache.hadoop.fs.Path;
                           ^
wordcount.java:4: 错误: 程序包org.apache.hadoop.io不存在
import org.apache.hadoop.io.IntWritable;
                           ^
wordcount.java:5: 错误: 程序包org.apache.hadoop.io不存在
import org.apache.hadoop.io.Text;
                           ^
wordcount.java:6: 错误: 程序包org.apache.hadoop.mapreduce不存在
import org.apache.hadoop.mapreduce.Job;
                                  ^
wordcount.java:7: 错误: 程序包org.apache.hadoop.mapreduce不存在
import  org.apache.hadoop.mapreduce.Mapper;
                                   ^
wordcount.java:8: 错误: 程序包org.apache.hadoop.mapreduce不存在
import org.apache.hadoop.mapreduce.Reducer;
                                  ^
wordcount.java:9: 错误: 程序包org.apache.hadoop.mapreduce.lib.input不存在
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
                                            ^
wordcount.java:10: 错误: 程序包org.apache.hadoop.mapreduce.lib.output不存在
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
                                             ^
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Object.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/String.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Exception.class)]]
wordcount.java:12: 错误: 找不到符号
        public static class  WordCountMapper extends  Mapper<Object, Text,Text,IntWritable>
                                                      ^
  符号:   类 Mapper
  位置: 类 wordcount
wordcount.java:12: 错误: 找不到符号
        public static class  WordCountMapper extends  Mapper<Object, Text,Text,IntWritable>
                                                                     ^
  符号:   类 Text
  位置: 类 wordcount
wordcount.java:12: 错误: 找不到符号
        public static class  WordCountMapper extends  Mapper<Object, Text,Text,IntWritable>
                                                                          ^
  符号:   类 Text
  位置: 类 wordcount
wordcount.java:12: 错误: 找不到符号
        public static class  WordCountMapper extends  Mapper<Object, Text,Text,IntWritable>
                                                                               ^
  符号:   类 IntWritable
  位置: 类 wordcount
wordcount.java:14: 错误: 找不到符号
                private final static  IntWritable one=new IntWritable(1);
                                      ^
  符号:   类 IntWritable
  位置: 类 WordCountMapper
wordcount.java:15: 错误: 找不到符号
                private  Text word=new Text();
                         ^
  符号:   类 Text
  位置: 类 WordCountMapper
wordcount.java:16: 错误: 找不到符号
                public void map(Object key, Text value,Context context)   throws  IOException,InterruptedException{
                                            ^
  符号:   类 Text
  位置: 类 WordCountMapper
wordcount.java:16: 错误: 找不到符号
                public void map(Object key, Text value,Context context)   throws  IOException,InterruptedException{
                                                       ^
  符号:   类 Context
  位置: 类 WordCountMapper
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/io/IOException.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/InterruptedException.class)]]
wordcount.java:26: 错误: 找不到符号
        public static class WordCountReducer extends Reducer<Text,IntWritable,Text,IntWritable>{
                                                     ^
  符号:   类 Reducer
  位置: 类 wordcount
wordcount.java:26: 错误: 找不到符号
        public static class WordCountReducer extends Reducer<Text,IntWritable,Text,IntWritable>{
                                                             ^
  符号:   类 Text
  位置: 类 wordcount
wordcount.java:26: 错误: 找不到符号
        public static class WordCountReducer extends Reducer<Text,IntWritable,Text,IntWritable>{
                                                                  ^
  符号:   类 IntWritable
  位置: 类 wordcount
wordcount.java:26: 错误: 找不到符号
        public static class WordCountReducer extends Reducer<Text,IntWritable,Text,IntWritable>{
                                                                              ^
  符号:   类 Text
  位置: 类 wordcount
wordcount.java:26: 错误: 找不到符号
        public static class WordCountReducer extends Reducer<Text,IntWritable,Text,IntWritable>{
                                                                                   ^
  符号:   类 IntWritable
  位置: 类 wordcount
wordcount.java:27: 错误: 找不到符号
                  public void  reduce(Text key,Iterable<IntWritable> values,Context context) throws IOException,InterruptedException
                                      ^
  符号:   类 Text
  位置: 类 WordCountReducer
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Iterable.class)]]
wordcount.java:27: 错误: 找不到符号
                  public void  reduce(Text key,Iterable<IntWritable> values,Context context) throws IOException,InterruptedException
                                                        ^
  符号:   类 IntWritable
  位置: 类 WordCountReducer
wordcount.java:27: 错误: 找不到符号
                  public void  reduce(Text key,Iterable<IntWritable> values,Context context) throws IOException,InterruptedException
                                                                            ^
  符号:   类 Context
  位置: 类 WordCountReducer
[正在检查wordcount]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/io/Serializable.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/AutoCloseable.class)]]
wordcount.java:14: 错误: 找不到符号
                private final static  IntWritable one=new IntWritable(1);
                                                          ^
  符号:   类 IntWritable
  位置: 类 WordCountMapper
wordcount.java:15: 错误: 找不到符号
                private  Text word=new Text();
                                       ^
  符号:   类 Text
  位置: 类 WordCountMapper
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Throwable.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Byte.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Character.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Short.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Long.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Float.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Integer.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Double.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Boolean.class)]]
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Void.class)]]
wordcount.java:30: 错误: 找不到符号
                          for(IntWritable  val1  : values)
                              ^
  符号:   类 IntWritable
  位置: 类 WordCountReducer
wordcount.java:34: 错误: 找不到符号
                          context.write(key,new IntWritable(total));
                                                ^
  符号:   类 IntWritable
  位置: 类 WordCountReducer
wordcount.java:38: 错误: 找不到符号
            Configuration conf1=new Configuration();
            ^
  符号:   类 Configuration
  位置: 类 wordcount
wordcount.java:38: 错误: 找不到符号
            Configuration conf1=new Configuration();
                                    ^
  符号:   类 Configuration
  位置: 类 wordcount
wordcount.java:39: 错误: 找不到符号
            Job job=new Job(conf1,"word count");
            ^
  符号:   类 Job
  位置: 类 wordcount
wordcount.java:39: 错误: 找不到符号
            Job job=new Job(conf1,"word count");
                        ^
  符号:   类 Job
  位置: 类 wordcount
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Class.class)]]
wordcount.java:43: 错误: 找不到符号
                  job.setOutputKeyClass(Text.class);
                                        ^
  符号:   类 Text
  位置: 类 wordcount
wordcount.java:44: 错误: 找不到符号
                  job.setOutputValueClass(IntWritable.class);
                                          ^
  符号:   类 IntWritable
  位置: 类 wordcount
wordcount.java:45: 错误: 找不到符号
                  FileInputFormat.addInputPath(job, new Path(args[0]));
                                                        ^
  符号:   类 Path
  位置: 类 wordcount
wordcount.java:45: 错误: 找不到符号
                  FileInputFormat.addInputPath(job, new Path(args[0]));
                  ^
  符号:   变量 FileInputFormat
  位置: 类 wordcount
wordcount.java:46: 错误: 找不到符号
                  FileOutputFormat.setOutputPath(job, new Path(args[1]));
                                                          ^
  符号:   类 Path
  位置: 类 wordcount
wordcount.java:46: 错误: 找不到符号
                  FileOutputFormat.setOutputPath(job, new Path(args[1]));
                  ^
  符号:   变量 FileOutputFormat
  位置: 类 wordcount
[正在加载ZipFileIndexFileObject[/usr/lib/jvm/jdk1.8.0_73/lib/ct.sym(META-INF/sym/rt.jar/java/lang/System.class)]]
[共 363 毫秒]
39 个错误
,我想问下这个引用第三方的jar包,如何使用啊?急

            

Company的主页 Company | 初学一级 | 园豆:32
提问于:2016-03-08 23:25
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windows下如下  最后一个;后面必须要用空格把这个类和lib包分开。LZ是在linux下,需要把;替换成:路径当然也要替换成linux格式的。

javac -cp c:\abc.jar;d:\efg.jar; f:\Test.java
java -cp c:\abc.jar;d:\efg.jar; f:\Test

snowjake123 | 园豆:469 (菜鸟二级) | 2016-03-12 15:19
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