日期:2014-05-20  浏览次数:20735 次

JDBC路径问题
public class DeleteDocByThumbnailPath {

private static List getPathJDBC() throws SQLException{

List l = new ArrayList();
Connection conn = null;
  Statement st = null;
  ResultSet rs = null;
   
  try{
 
  Class.forName("com.mysql.jdbc.Driver"); //加载对应数据库的驱动
  conn = (Connection) DriverManager.getConnection("jdbc:mysql://192.168.1.22:3306/rayzen?useUnicode=true&characterEncoding=UTF-8", "root", "zhaozy010203"); //根据对应数据库的url,user,password获取数据库连接
  st = (Statement) conn.createStatement(); //创建用于执行静态 SQL 语句并返回它所生成结果的对象
  rs = (ResultSet) st.executeQuery("select thumbnailPath from doc where projectid = '14j9wbLMfq_29'"); //用st执行sql,并保存在result中
 
   
 
  while(rs.next()){
 
  l.add(rs.getString("thumbnailPath"));
 
  }
 
  }catch(ClassNotFoundException e){
  e.printStackTrace();
  }catch(SQLException e){
  e.printStackTrace();
  }finally{
  rs.close();
  st.close();
  conn.close();
  }
  return l;
}

private static void deleteFile(String path) {

File file = new File(path);

if (file.exists()) {
file.delete();
}
}

public static void main(String [] args) throws SQLException{

List list = getPathJDBC();

System.out.println("=================s====================");

for(int i = 0;i<list.size();i++){

String a = "C:/vfs/"+list;

System.out.println("==========a======="+a);

deleteFile(a);

}
System.out.println("================e==============");
}
}

小弟的代码,目的是删除thumbnailPath的所有图片,现在路径跟我对不上,他给我输出是这种:
C:/vfs[filedata/14j9wbLMfq_29/14j9wbLMfq_359634072664718281250_thumbnail.jpg
我想要的是:C:/vfs/filedata/14j9wbLMfq_29/14j9wbLMfq_359634072664718281250_thumbnail.jpg

------解决方案--------------------
你直接+list怎么可以。。

String a = "C:/vfs/"+(String)list.get(i);
------解决方案--------------------
System.out.println(file.delete()) ;

看看是否删除成功:true 成功 false 失败