简单内容管理实现：使用JCR对二进制文件的读写和全文检索

1.二进制文件的存储

Node root = session.getRootNode();
Node smartnote = root.getNode("smartnote");
note = smartnote.addNode("note");
filenode = note.addNode("file", "nt:file");

note.setProperty("utccreatetime", CommonUtils
        .parseString(new Date(), 5));

resnode = filenode
        .addNode("jcr:content", "nt:resource");

MimeTable mt = MimeTable.getDefaultTable();
String mimeType = mt.getContentTypeFor(file.getName());
//注意默认mimetype不好用，需要自己写，mimetype必须正确，否则全文检索不能用
if (mimeType == null) {
    mimeType = SmartUtils.getFileMimeType(filename);
}
System.out.println(mimeType);

resnode.setProperty("jcr:mimeType", mimeType);
resnode.setProperty("jcr:encoding", "");

ote.setProperty("title", input.getName());
                    
Calendar lastModified = Calendar.getInstance();
lastModified.setTimeInMillis(file.lastModified());
resnode.setProperty("jcr:lastModified", lastModified);
resnode.setProperty("jcr:data", new FileInputStream(file));
note.setProperty("utcupdatetime", CommonUtils.parseString(
        new Date(), 5));
note.addMixin("mix:referenceable");
note.addMixin("mix:versionable");
session.save();

2.全文检索

QueryManager qm = session.getWorkspace().getQueryManager();
String path2 = "//smartnote/note/element(*, nt:file)[(jcr:contains(jcr:content, '"+key+"'))]";
Query query = qm.createQuery(path1, Query.XPATH);
QueryResult result = query.execute();
NodeIterator ir = result.getNodes();

3.内容读取
Node node = session.getNodeByUUID(input.getUuid());
Node filenode = node.getNode("file");
InputStream in = filenode.getNode("jcr:content")
        .getProperty("jcr:data").getStream();
String filename = SmartUtils.getTempPath() + "/"
        + this.getEditorInput().getName() + ".doc";
File file = new File(filename);
OutputStream os = new FileOutputStream(file);
byte buf[] = new byte[1024];
int len;
while ((len = in.read(buf)) > 0) {
    os.write(buf, 0, len);
}
os.close();
in.close();