import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.Writer;
//軟著源代碼快速提取——java代碼讀寫
public class ReadDa {
public static void main(String[] args) throws Exception {
//文件讀取路徑 window File("G:\\testApp\\src\\main\\java\\com\\test")
File dir = new File("/Users/admin/git_dev/zenlayer-da/src/main/java/com/zenlayer/cloud");
//文件輸出路徑
File target = new File("/Users/admin/Test/test.txt");//G:\\test.txt
BufferedWriter bw = new BufferedWriter(new FileWriter(target));
StringBuffer sb = new StringBuffer();
loopRead(dir, sb);
write(sb.toString(), bw);
System.out.println("完成");
}
// 遍歷文件夾下所有文件
private static void loopRead(File dir, StringBuffer sb){
File[] files = dir.listFiles();
if (files!=null)
for(File file:files){
if(file.isDirectory()){
loopRead(file, sb);
}else {
if(file.length()!=0){
sb.append(readFileToString(file));
}
}
}
}
//讀取文件裏面的內容
private static String readFileToString(File file){
BufferedReader br = null;
StringBuilder sb = new StringBuilder();
try {
br = new BufferedReader(new FileReader(file));
String line = null;
while((line = br.readLine())!=null){
String s = line.trim();
if (s.length()==0) {
continue;
}
if (s.startsWith("/") || s.startsWith("*")) {
continue;
}
sb.append(line).append("\n");
}
} catch (Exception e) {
e.printStackTrace();
}finally{
try {
if(br!=null){
br.close();
}
} catch (Exception e2) {
e2.printStackTrace();
}
}
return sb.toString();
}
//將讀取的路徑以及相應的內容寫入指定的文件
private static void write(String str, Writer writer){
try {
writer.write(str);
} catch (Exception e) {
e.printStackTrace();
}finally{
try {
if(writer!=null)
writer.close();
} catch (Exception e2) {
e2.printStackTrace();
}
}
}
}