使用Java創建plist

Question

使用Java創建plist有沒有簡單的方法？結果應該與序列化Objective C中的字典相同。

Answer 1

PList職業從code.google.com/xmlwise看起來更有希望給我。

Answer 2

Here您可以非常容易地找到用於創建PList的PList類。

Answer 3

你可以使用這個庫：http://plist.sf.net/

將會寫入NSObjects的文件，反之亦然。

Answer 4

您不需要任何外部Java庫。使用以下步驟：

1. 創建一個空的獨立DOM文檔。

   DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); 
   DocumentBuilder builder = factory.newDocumentBuilder(); 
   DOMImplementation di = builder.getDOMImplementation(); 
   DocumentType dt = di.createDocumentType("plist", 
       "-//Apple//DTD PLIST 1.0//EN", 
       "http://www.apple.com/DTDs/PropertyList-1.0.dtd"); 
   Document doc = di.createDocument("", "plist", dt); 
   doc.setXmlStandalone(true); 
   

2. 設置plist版本。

   Element root = doc.getDocumentElement(); 
   root.setAttribute("version", "1.0"); 
   

3. 輸入數據。

   Element rootDict = doc.createElement("dict"); 
   root.appendChild(rootDict); 
   Element sampleKey = doc.createElement("key"); 
   sampleKey.setTextContent("foo"); 
   rootDict.appendChild(sampleKey); 
   Element sampleValue = doc.createElement("string"); 
   sampleValue.setTextContent("bar"); 
   rootDict.appendChild(sampleValue); 
   

4. 創建一個變壓器。

   DOMSource domSource = new DOMSource(doc); 
   TransformerFactory tf = TransformerFactory.newInstance(); 
   Transformer t = tf.newTransformer(); 
   t.setOutputProperty(OutputKeys.ENCODING, "UTF-16"); 
   t.setOutputProperty(OutputKeys.DOCTYPE_PUBLIC, dt.getPublicId()); 
   t.setOutputProperty(OutputKeys.DOCTYPE_SYSTEM, dt.getSystemId()); 
   t.setOutputProperty(OutputKeys.INDENT, "yes"); 
   t.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2"); 
   

5. 寫入文件。

   StringWriter stringWriter = new StringWriter(); 
   StreamResult streamResult = new StreamResult(stringWriter); 
   t.transform(domSource, streamResult); 
   String xml = stringWriter.toString(); 
   System.out.println(xml); // Optionally output to standard output. 
   OutputStream stream = new FileOutputStream("example.plist"); 
   Writer writer = new OutputStreamWriter(stream, "UTF-16"); 
   writer.write(xml); 
   writer.close(); 
   

由Property List Programming Guide描述然後可以讀在Objective-C這樣的文件。

Answer 5

對於簡單的情況，現有的答案看起來很複雜。這裏是一個限制較短的版本：

import java.io.File; 
import java.io.IOException; 
import java.util.Map; 
import java.util.Map.Entry; 

import org.apache.commons.io.FileUtils; 


public class PList { 

    public static String toPlist(Map<String,String> map) { 
     String s = ""; 
     s += "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"; 
     s += "<!DOCTYPE plist PUBLIC \"-//Apple Computer//DTD PLIST 1.0//EN\" \"http://www.apple.com/DTDs/PropertyList-1.0.dtd\">\n"; 
     s += "<plist version=\"1.0\">\n"; 
     s += "<dict>\n"; 

     for(Entry<String,String> entry : map.entrySet()) { 
      s += " <key>" + entry.getKey() + "</key>\n"; 
      s += " <string>" + entry.getValue() + "</string>\n"; 
     } 

     s += "</dict>\n"; 
     s += "</plist>\n"; 
     return s; 
    } 

    public static void writePlistToFile(Map<String,String> map, File f) throws IOException { 
     FileUtils.writeStringToFile(f, toPlist(map), "utf-8"); 
    } 

}