MongoDB：mongodb在项目开发时的安全验证、分页查询操作。

对于数据库而言，在项目应用中都需要安全验证，不然，就会报错，呵呵～～

现在贴出来我在项目中是怎么做的。

数据源bean：

package com.ishowchina.user.dao;
import com.mongodb.BasicDBObject;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.DBObject;
import com.mongodb.MongoClient;

public class DataSource {
	private String ip;//数据库连接信息要从配置文件中获取  参考appconfig.properties文件
	private Integer port;
	protected String dbName;
	protected Boolean auth;
	protected String userName;
	protected String passWord;
	//打开连接 此处在获取数据库信息（ip、账户、密码等）后，打开数据库。
	public MongoClient OpenConnection() throws Exception{
		MongoClient mongoClient = new MongoClient( ip,port);
		return mongoClient;
	}
	//获取数据集  此处为数据库安全验证
	public DBCollection getCollection(MongoClient client,String tableName){
		if(client==null){
			return null;
		}else {
			DB db = client.getDB(getDbName());//获取数据库
			boolean r=true;//验证用户及密码
			if(auth!=null && auth.equals(true)){
				r = db.authenticate(userName, passWord.toCharArray());//密码验证
			}
			if(r){
				DBCollection coll = db.getCollection(tableName);//获取数据集
				return coll;
			}else {
				return null;
			}
		}
	}
	//释放连接
	public void ReleaseConnection(MongoClient mongoClient){
		if(mongoClient!=null){
			mongoClient.close();
		}
	}
	//删除操作，注意要传入参数
	public void deleteObject(DBObject o,DBCollection col){
		col.remove(o);
	}
	//分页查询   分页查询mongodb已经为我们集成了，只需调用api就行
	public DBCursor queryPage(DBObject query,DBObject sort,int start,int limit,DBCollection col){
		//.sort('account',1).limit(10),int count = cursor.count()
		BasicDBObject exp=new BasicDBObject("_id",0);
		return col.find(query,exp).sort(sort).skip(start).limit(limit);
	}
	public String getIp() {
		return ip;
	}
	public void setIp(String ip) {
		this.ip = ip;
	}
	public Integer getPort() {
		return port;
	}
	public void setPort(Integer port) {
		this.port = port;
	}
	public String getDbName() {
		return dbName;
	}
	public Boolean getAuth() {
		return auth;
	}
	public void setAuth(Boolean auth) {
		this.auth = auth;
	}
	public void setDbName(String dbName) {
		this.dbName = dbName;
	}
	public String getUserName() {
		return userName;
	}
	public void setUserName(String userName) {
		this.userName = userName;
	}
	public String getPassWord() {
		return passWord;
	}
	public void setPassWord(String passWord) {
		this.passWord = passWord;
	}
}

appconfig.properties配置文件的内容，配置数据库源信息

mongo.ip=160.0.0.243
mongo.port=27017
mongo.auth=true
mongo.user=ucenter
mongo.pwd=user2show
mongo.dbName=ucenter

spring-servlet.xml

    
      
          
              
                classpath:appconfig.properties