Java生成Js文件-封装类

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import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;

import com.gzdec.common.config.AppConfig;
import com.gzdec.common.web.exception.DefaultException;

public class WriteJS {

 static File cgiPath = null;
 static String root = null;

 static {
  try {
   root = AppConfig.getProperty("rootPath")
     + AppConfig.getProperty("cgiFilePath");
   cgiPath = createDir(AppConfig.getProperty("rootPath"), AppConfig
     .getProperty("cgiFilePath"));
  } catch (Exception e) {
   e.printStackTrace();
  }
 }

 /**
  * 根据传过来的路径，文件名称，文件内容生成JS文件
  *
  * @param path
  * @param name
  * @param html
  * @throws IOException
  * @throws DefaultException
  */
 public static void writeJS(String path, String name, String html)
   throws IOException, DefaultException {
  /* 创建目录 */
  File filePath = createDir(root, path.trim());
  /* 创建文件 */
  File file = getFile(filePath, name.trim() + ".js");
  /* 写文件 */
  writeFile(file, html);
 }

 public static void writeXML(String path, String fileName, String xml)
   throws IOException, DefaultException {
  /* 创建目录 */
  File filePath = createDir(root, path.trim());
  /* 创建文件 */
  File file = getFile(filePath, fileName.trim() + ".xml");
  /* 写文件 */
  writeFileXML(file, xml);

 }

 public static void writeHTML(String path, String fileName, String xml)
   throws IOException, DefaultException {
  /* 创建目录 */
  String htmlRoot = "";
  try {
   htmlRoot = AppConfig.getProperty("rootPath")
     + AppConfig.getProperty("cgiFilePath");
  } catch (Exception e) {
   e.printStackTrace();
  }
  File filePath = createDir(htmlRoot, path.trim());
  /* 创建文件 */
  File file = getFile(filePath, fileName.trim() + ".html");
  /* 写文件 */
  writeFileXML(file, xml);

 }

 /**
  * 创建目录，目录必须以"/"间隔
  *
  * @param rootPath
  * @param path
  * @throws IOException
  * @throws DefaultException
  */
 public static File createDir(String rootPath, String path)
   throws IOException, DefaultException {

  File file = new File(rootPath);
  if (!file.exists()) {
   throw new DefaultException("根目录不存在");
  }

  String dirs[] = path.split("/");
  for (int i = 0; i < dirs.length; i++) {
   if (dirs[i] != null && !"".equals(dirs[i].trim())) {
    file = getDir(file, dirs[i]);
   }
  }
  return file;
 }

 /**
  * 创建目录
  *
  * @param parentPath
  * @param dirName
  * @return
  * @throws IOException
  */
 public static File getDir(File parentPath, String dirName)
   throws IOException {
  File dir = new File(parentPath, dirName);
  if (!dir.exists()) {
   dir.mkdir();
  }
  return dir;
 }

 /**
  * 创建文件
  *
  * @param dirPath
  * @param fileName
  * @return
  * @throws IOException
  */
 public static File getFile(File dirPath, String fileName)
   throws IOException {
  File file = new File(dirPath, fileName);
  if (!file.exists()) {
   file.createNewFile();
  }
  return file;
 }

 /**
  * 写文件
  *
  * @param file
  * @param html
  * @throws IOException
  * @throws DefaultException
  */
 public static void writeFile(File file, String html) throws IOException,
   DefaultException {

  if (html != null && !"".equals(html.trim())) {
   /* 参数有效性检测 */
   if (file == null || !file.isFile()) {
    throw new DefaultException(
      "public static void appendFile(File tar) parameters error!");
   }
   /* 判断文件是否可写 */
   if (!file.canWrite()) {
    throw new DefaultException(file.toString()
      + " write prohibited! ");
   }
   String js = "var html =\"" + html + "\";document.write(html);";
   /* 写文件 */
   /*
    * FileWriter fw = new FileWriter(file); fw.write(js); fw.close();
    */
   OutputStreamWriter out = new OutputStreamWriter(
     new FileOutputStream(file), "GBK");
   out.write(js.toString());
   out.flush();
   out.close();
  } else {
   /* 参数有效性检测 */
   if (file == null || !file.isFile()) {
    throw new DefaultException(
      "public static void appendFile(File tar) parameters error!");
   }
   /* 判断文件是否可写 */
   if (!file.canWrite()) {
    throw new DefaultException(file.toString()
      + " write prohibited! ");
   }
   String js = "var html =\"\";document.write(html);";
   /* 写文件 */
   /*
    * FileWriter fw = new FileWriter(file); fw.write(js); fw.close();
    */
   OutputStreamWriter out = new OutputStreamWriter(
     new FileOutputStream(file), "GBK");
   out.write(js.toString());
   out.flush();
   out.close();
  }
 }

 /**
  * 写文件
  *
  * @param file
  * @param html
  * @throws IOException
  * @throws DefaultException
  */
 public static void writeFileXML(File file, String xml) throws IOException,
   DefaultException {

  if (xml != null && !"".equals(xml.trim())) {
   /* 参数有效性检测 */
   if (file == null || !file.isFile()) {
    throw new DefaultException(
      "public static void appendFile(File tar) parameters error!");
   }
   /* 判断文件是否可写 */
   if (!file.canWrite()) {
    throw new DefaultException(file.toString()
      + " write prohibited! ");
   }

   /* 写文件 */
   /*
    * FileWriter fw = new FileWriter(file); fw.write(js); fw.close();
    */
   // 根据文件名生成对应格式
/*   if (xml.contains("<pie>")) {

    OutputStreamWriter out = new OutputStreamWriter(
      new FileOutputStream(file), "UTF-8");
    out.write(xml);
    out.flush();
    out.close();
   } else {
    OutputStreamWriter out = new OutputStreamWriter(
      new FileOutputStream(file), "GBK");
    out.write(xml);
    out.flush();
    out.close();

   }*/
   //本项目xml必须为UTF-8格式
   OutputStreamWriter out = new OutputStreamWriter(
     new FileOutputStream(file), "GBK");
   out.write(xml);
   out.flush();
   out.close();

  } else {
   /* 参数有效性检测 */
   if (file == null || !file.isFile()) {
    throw new DefaultException(
      "public static void appendFile(File tar) parameters error!");
   }
   /* 判断文件是否可写 */
   if (!file.canWrite()) {
    throw new DefaultException(file.toString()
      + " write prohibited! ");
   }

   /* 写文件 */
   /*
    * FileWriter fw = new FileWriter(file); fw.write(js); fw.close();
    */
   OutputStreamWriter out = new OutputStreamWriter(
     new FileOutputStream(file), "GBK");
   out.write(xml);

   out.flush();
   out.close();
  }
 }

}

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