日期:2014-05-20  浏览次数:20791 次

读取txt格式里的数据并执行
javame 怎么从txt格式的文档里读取数据并执行

------解决方案--------------------
根据路径找到文件然后转换成字符串就可以使用了。

给你个例子
fileName 就是你要打开的文件路径,用的时候调用这个方法,根据自己的需要去截取

private String readFile(String fileName)
{
try
{
String res = "";
InputStream is = getResources().getAssets().open(fileName);
int length = is.available();
byte[] buffer = new byte[length];
is.read(buffer);
res = EncodingUtils.getString(buffer, "uft-8");
return res;
}
catch (IOException e)
{
e.printStackTrace();
}
return null;
}


------解决方案--------------------
Java code

package com.jctest.one;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;


public class ReadText {
    public String ReadDate() { 
        String url = "c:/test.txt"; 
        String strs = "";
        try { 
        FileReader read = new FileReader(new File(url)); 
        StringBuffer sb = new StringBuffer(); 
        char ch[] = new char[1024]; 
        int d = read.read(ch); 
        while(d!=-1){ 
        String str = new String(ch,0,d); 
        sb.append(str); 
        d = read.read(ch); 
        } 
        System.out.print(sb.toString()); 
        String a = sb.toString().replaceAll("@@@@@", ","); 
        strs = a.substring(0,a.length()-1); 
        } catch (FileNotFoundException e) { 
        e.printStackTrace(); 
        } catch (IOException e) { 
        e.printStackTrace(); 
        } 
        return strs ; 
    } 
    public static void main(String a[]) 
    { 
        ReadText util = new ReadText(); 
        String cc = util.ReadDate(); 
        System.out.println("result...."+cc); 
    } 
}