java导入文本文件代码 java怎么导入文本

JAVA编程怎样将文本文档导入新建文本文档之后,在里面写程序 , 保存之后要把后缀名改成.java文件,文件的名字是类名 。
然后在命令提示符里面使用javac 命令编译,使用java运行 。
用java代码把txt文档中资料导入到数据库BufferedReader input;
try {
String s = new String();
input = new BufferedReader(new FileReader("f:\\123.txt"));
while ((s = input.readLine()) != null) { // 判断是否读到java导入文本文件代码了最后一行
String info[] = s.split(" ");
System.out.println( info[0] + " " + info[1] + " " + info[2] );
}
input.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
把info[0] + " " + info[1] + " " + info[2]这三个值放在insert语句里就行java导入文本文件代码了经过测试
java读取文本文件代码java读取文本文件java导入文本文件代码的方法有很多 这个例子主要介绍最简单 最常用java导入文本文件代码的BufferedReader类 完整例子如下 package net chinaunix blog hzm text;import java io BufferedReader;import java io FileReader;import java io IOException;public class ReadFile {private String path;public ReadFile(String filePath){path = filePath;}public String[] openFile() throws IOException{FileReader fr = new FileReader(path) BufferedReader textReader = new BufferedReader(fr) String[] textData = https://www.04ip.com/post/new String[readLines()];int i;for(i= ; ireadLines() i++){textData[i] = textReader readLine() }textReader close() return textData;}int readLines() throws IOException{FileReader fileToRead = new FileReader(path) BufferedReader bf = new BufferedReader(fileToRead) int numberOfLines = ;@SuppressWarnings( unused )String oneLine;while((oneLine = bf readLine()) != null){numberOfLines++;}bf close() return numberOfLines;}}package net chinaunix blog hzm text;import java io IOException;public class FileData {public static void main(String[] args) throws IOException{String filePath = C:/text txt ;try{ReadFile reader = new ReadFile(filePath) String[] content = reader openFile() int i;for(i= ;icontent length;i++){System out println(content[i]) }}catch(IOException e){System out println( 异常信息 + e getMessage()) }}}java io BufferedReaderThe buffer size may be specified or the default size may be used The default is large enough for most purposes In general each read request made of a Reader causes a corresponding read request to be made of the underlying character or byte stream It is therefore advisable to wrap a BufferedReader around any Reader whose read() operations may be costly such as FileReaders and InputStreamReaders For example BufferedReader in = new BufferedReader(new FileReader( foo in )) will buffer the input from the specified file Without buffering each invocation of read() or readLine() could cause bytes to be read from the file converted into characters and then returned which can be very inefficient Programs that use DataInputStreams for textual input can be localized by replacing each DataInputStream with an appropriate BufferedReader java io FileReaderFileReader is meant for reading streams of characters For reading streams of raw bytes consider using a FileInputStream lishixinzhi/Article/program/Java/hx/201311/26249
用java导入txt数据到sql server中这个很简单啊java导入文本文件代码,
通过文件流一行一行java导入文本文件代码的读
每行java导入文本文件代码的字符串通过replaceAll空格(可能是\t)替换成特殊字符java导入文本文件代码 , 注意java导入文本文件代码:要用正则替换连续的空格(或\t)
然后通过split这个特殊字符成数组

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