mongodb的一个简单使用。
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package
com.chuntent.mongo;
import java.util.Map;
import java.util.Map.Entry;
import com.mongodb.BasicDBObject;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.Mongo;
public
class MongoTool {
private
Mongo mg = null ;
public
MongoTool(){
try {
mg = new
Mongo( "192.168.93.99" , 10001 );
} catch (Exception e){
e.printStackTrace();
}
}
public
boolean initConnection(String url , int
port){
try {
mg = new
Mongo(url, port);
return
true ;
} catch (Exception e){
e.printStackTrace();
return
false ;
}
}
/**
* @Description 向mongodb中插入数据
* @param dbname db名称
* @param collectonname 表名
* @param map 要插入的数据
* @return
*/
public
boolean insert(String dbname , String collectonname , Map<String , String> map){
try {
DB db = mg.getDB(dbname);
DBCollection conn = db.getCollection(collectonname);
for (Entry<String , String> en : map.entrySet()){
BasicDBObject objDB = new
BasicDBObject();
objDB.put(en.getKey() , en.getValue());
conn.save(objDB);
}
return
true ;
} catch (Exception e){
e.printStackTrace();
return
false ;
}
}
/**
* @Description 关闭链接
*/
public
void closeConnection(){
mg.close();
}
public
static void main(String[] args) {
try {
} catch (Exception e){
e.printStackTrace();
}
}
} |