java一行一行写入或读取数据.doc

java一行一行写入或读取数据假如E:/phsftp/evdokey目录下有个evdokey_201103221556.txt文件，现在对evdokey_201103221556.txt文件进行写入或读取操作，并解决写入或读取出现的乱码问题。文件内容如：zhangsan,23,福建 lisi,30,上海 wangwu,43,北京 laolin,21,重庆 ximenqing,67,贵州 代码如下： /* * 一行一行读取文件，适合字符读取，若读取中文字符时会出现乱码 * * 流的关闭顺序：先打开的后关，后打开的先关， * 否则有可能出现java.io.IOException: Stream closed异常 * * throws IOException */ Test public void readFile01() throws IOException FileReader fr=new FileReader(E:/phsftp/evdokey/evdokey_201103221556.txt); BufferedReader br=new BufferedReader(fr); String line=; String arrs=null; while (line=br.readLine()!=null) arrs=line.split(,); System.out.println(arrs0 + : + arrs1 + : + arrs2); br.close(); fr.close(); /* * 一行一行读取文件，解决读取中文字符时出现乱码 * * 流的关闭顺序：先打开的后关，后打开的先关， * 否则有可能出现java.io.IOException: Stream closed异常 * * throws IOException */ Test public void readFile02() throws IOException FileInputStream fis=new FileInputStream(E:/phsftp/evdokey/evdokey_201103221556.txt); InputStreamReader isr=new InputStreamReader(fis, UTF-8); BufferedReader br = new BufferedReader(isr); /简写如下 /BufferedReader br = new BufferedReader(new InputStreamReader( / new FileInputStream(E:/phsftp/evdokey/evdokey_201103221556.txt), UTF-8); String line=; String arrs=null; while (line=br.readLine()!=null) arrs=line.split(,); System.out.println(arrs0 + : + arrs1 + : + arrs2); br.close(); isr.close(); fis.close(); /* * 一行一行写入文件，适合字符写入，若写入中文字符时会出现乱码 * * 流的关闭顺序：先打开的后关，后打开的先关， * 否则有可能出现java.io.IOException: Stream closed异常 * * throws IOException */ Test public void writeFile01() throws IOException String arrs= zhangsan,23,FuJian, lisi,30,ShangHai, wangwu,43,BeiJing, laolin,21,ChongQing, ximenqing,67,GuiZhou ; FileWriter fw=new FileWriter(new File(E:/phsftp/evdokey/evdokey_201103221556.txt); /写入中文字符时会出现乱码 BufferedWriter bw=new BufferedWriter(fw); /BufferedWriter bw=new BufferedWriter(new BufferedWriter(new OutputStreamWriter(new FileOutputStream(new File(E:/phsftp/evdokey/evdokey_201103221556.txt), UTF-8); for(String arr:arrs) bw.write(arr+tn); bw.close(); fw.close(); /* * 一行一行写入文件，解决写入中文字符时出现乱码 * * 流的关闭顺序：先打开的后关，后打开的先关， * 否则有可能出现java.io.IOException: Stream closed异常 * * throws IOException */ Test public void writeFile02() throws IOException String arrs= zhangsan,23,福建, lisi,30,上海, wangwu,43,北京, laolin,21,重庆, ximenqing,67,贵州 ; /写入中文字符时解决中文乱码问题 FileOutputStream fos=new FileOutputStream(new File(E:/phsftp/evdokey/evdokey_201103221556.txt); OutputStreamWriter osw=new OutputStreamWriter(fos, UTF-8); BufferedWriter bw=new BufferedWriter(osw); /简写如下： /BufferedWriter writer = new BufferedWriter(new OutputStreamWriter( / new FileOutputStream(new File(E:/phsftp/evdokey/ev