Java复制文件并且替换源文件内容
首先，创建一个类 要求输入文件夹地址，目标文件地址,要更改的K_V集合,还有编码方式
//全局变量Map 和需要用字符流读取的文件（可以自己适当改变问价后缀）
private static Map
private static String[] replaceContentFileExtName = new String[] { ".java", ".properties", ".xml" };
/**
* @param fileName
* 文件名
* @param map
* 输入k_v集合 subProjectName 项目名 webProjectName 项目名 rpcProjectName 项目名
* packageName 包名 javaCompileLevel java编译版本
* @param dirName
* 需要复制的文件夹的内容
* @param codeRule
* 编码格式
* @throws IOException
*/
public static void getProductBak(String fileName, String targetDirectoryName, Map
String codeRule) throws IOException {
if (fileName == null || "".equals(fileName)) {
System.out.println("请输入源文件夹名"); //判断文件是否为空
return;
}
String sourceCurrentPath = "";
if (fileName.contains(File.separator)) {
sourceCurrentPath = fileName;
} else {
sourceCurrentPath = CopyFileDemo.getDesktopPath() + fileName + File.separator;
} //获取桌面地址 拼接路径
File sourceModel = new File(sourceCurrentPath); //创建以输入路径名的新文件
if (sourceModel == null) {
return;
}
String projectPath = "";
if (targetDirectoryName != null && targetDirectoryName.contains(map.get("projectName"))) {
projectPath = targetDirectoryName;
} else {
projectPath = CopyFileDemo.getDesktopPath() + map.get("projectName") + File.separator;
new File(projectPath).mkdir();
} //判断名字是否全路径
File[] sourceFiles = sourceModel.listFiles();
if (sourceFiles == null || sourceFiles.length == 0) {
return;
}
for (File currentFile : sourceFiles) {
String currentFilePath = currentFile.getPath();
String currentFileName = currentFile.getName();
currentFileName = replaceVailable(currentFileName, map); //替换文件名字中的变量
boolean isFile = currentFile.isFile();
// is File,copy File
if (isFile) { //判断是否是文件
// ignore DS_Store
if (currentFileName.contains("DS_Store")) { //Mac下隐藏文件夹去掉
continue;
}
// create new file
String newTargetFilePath = projectPath + currentFileName + File.separator;
new File(newTargetFilePath).createNewFile();
// copy file
// byte (java properties xml) or chars
if (getFileIsByte(currentFileName)) {
InputStream is = new FileInputStream(currentFilePath);
OutputStream os = new FileOutputStream(newTargetFilePath);
byte[] buff = new byte[1024];
int length = -1;
while ((length = is.read(buff)) != -1) {
os.write(buff, 0, length);
}
os.flush();
os.close();
is.close();
// byte
} else {
BufferedReader reader = new BufferedReader(new FileReader(currentFilePath));
BufferedWriter writer = new BufferedWriter(
new OutputStreamWriter(new FileOutputStream(newTargetFilePath), Charset.forName(codeRule)));
String readStr = "";
while ((readStr = reader.readLine()) != null) {
readStr = replaceVailable(readStr, map);
writer.write(readStr + "\n");
}
reader.close();
writer.flush();
writer.close();
}
} else { //判断是否是文件夹
// is Directory,mkdir
if (currentFileName.startsWith(".")) {
System.out.println(currentFileName);
currentFileName = directoryNameHandle(currentFileName);
currentFileName = currentFileName.substring(1, currentFileName.length());
System.out.println(projectPath + "." + currentFileName + File.separator);
new File(projectPath + "." + currentFileName + File.separator).mkdirs();
}
currentFileName = directoryNameHandle(currentFileName);
new File(projectPath + currentFileName + File.separator).mkdirs();
getProductBak(currentFilePath, projectPath + currentFileName + File.separator, map, codeRule);
}
}
//包名分级创建文件夹
public static String directoryNameHandle(String name) {
if (name != null && !"".equals(name) && !name.contains(".") && !name.startsWith("\\.")
&& name.contains("package")) {
return replaceVailable(name, map);
}
name = replaceVailable(name, map);
String[] paths = name.split("\\.");
String result = "";
for (String path : paths) {
result = result + path + File.separator;
}
return result;
}
// desktop path
public static String getDesktopPath() {
FileSystemView fsv = FileSystemView.getFileSystemView();
File com = fsv.getHomeDirectory();
return com.getPath() + File.separator;
}
//要复制的文件夹变量用$$括起来 以下方法替换变量
public static String replaceVailable(String sourceStr, Map
for (String key : model.keySet()) {
if (sourceStr.contains("$" + key + "$")) {
sourceStr = sourceStr.replace("$" + key + "$", model.get(key));
}
}
return sourceStr;
}
//判断用字节文件读取文件 还是字符流读取
public static boolean getFileIsByte(String fileName) {
if (fileName == null || "".equals(fileName)) {
return true;
}
for (String extName : replaceContentFileExtName) {
if (fileName.endsWith(extName)) {
return false;
}
}
return true;
}