java有没有一种不用ObjectInputStream就可以将FileInputStream转换为对象的方法?
我想知道不使用ObjectInputStream是否可以从FileInputStream获取对象
我为什么要这样做?我最近在做一个项目,上面写着。DAT文件来自游戏并将其转换为。OBJ-这些有一个陷阱。但是,DAT文件:它们的流头始终为0xFACEAF0E。有没有办法绕过ObjectInputStream对流头的限制,从这些文件中获取对象
这是我需要帮助的代码
package xan_code;
/*
* Purpose: Determine file extension and run it through the code to move it to an OBJ.
*/
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Scanner;
import main.BeginConversion; //Import the conversion code. Returns a string based on the file
import xan_code.dathandler.ReadBinary; //Get the .DAT reading functions
@SuppressWarnings("serial")
public class HandleFiles extends Main { //Extend main to get the log from the opener UI.
static BeginConversion converter = new BeginConversion(); //Get the converter for XML files since this will also read XMLs derived from the .DAT
static String DatText = ""; //The "text" to return for the .DAT (To pack into the decoded file)
static Object _object; //THIS IS THE VARIABLE OF THE OBJECT I NEED IN ORDER TO CONVERT THE .DAT TO A MODEL
@SuppressWarnings("static-access")
public static String convert(File file, boolean isXML, FileInputStream FIS) { //Convert. Passes in the .DAT or .XML file, a boolean to whether or not its extension is .XML, and the FileInputStream from file
if (isXML) { //If it's an XML
String xml = ""; //This is the text to store the XML as a string
String obj = ""; //This is the text to store the WaveFront OBJ (Model format) as a string
try {
xml = new Scanner(file).useDelimiter("\\Z").next(); //use the scanner to get the string of the XML
obj = converter.BeginConvert(xml); //Pass the XML into the java files required to read from the XML and convert it to an OBJ. They return the text from an OBJ file.
} catch (Exception e) {
//Exceptions are handled before, though to be safe...
e.printStackTrace();
}
return obj; //Return that text to Main so I can create the file.
} else { //We have a .DAT
try {
//HELP REQUIRED HERE. NEED TO GET _object FROM THE FILE WITHOUT USING ObjectInputStream
DatText = ReadBinary.Read(file, _object); //Right now this actually returns the text of an XML, but that doesn't matter much at the moment.
} catch (IOException e) {
DatText = "Unexpected error while reading .DAT file!";
e.printStackTrace();
}
return DatText;
}
}
}
# 1 楼答案
您只需去掉ObjectInputStream在使用FileInputStream时不应首先看到的额外字节