Java 读取文本文件内容 - Scripts 学盟

/**
* (#)ReadText.java　　　　创建时间：Apr 7, 2011 11:14:16 PM<br />
*/
package org.iscripts.test;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
/**
* @author 林俊海(ialvin.cn) 广东·普宁·里湖
*/
public class TextUtil {
/**
* 从文件中读取文本内容, 读取时使用平台默认编码解码文件中的字节序列
* @param file 目标文件
* @return
* @throws IOException
*/
public static String loadStringFromFile(File file) throws IOException {
return TextUtil.loadStringFromFile(file, System.getProperty("file.encoding"));
}
/**
* 从文件中读取文本内容
* @param file 目标文件
* @param encoding 目标文件的文本编码格式
* @return
* @throws IOException
*/
public static String loadStringFromFile(File file, String encoding) throws IOException {
BufferedReader reader = null;
try {
reader = new BufferedReader(new InputStreamReader(new FileInputStream(file), encoding));
StringBuilder builder = new StringBuilder();
char[] chars = new char[4096];
int length = 0;
while (0 < (length = reader.read(chars))) {
builder.append(chars, 0, length);
}
return builder.toString();
} finally {
try {
if (reader != null) reader.close();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}
public static void main(String[] args) throws IOException {
File file = new File("D:\\我的文本.txt");
System.out.println(loadStringFromFile(file, "GBK"));
}
}

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