DHTMLX GRID数据连接

DHTMLX GRID数据连接

所依赖的类

import java.sql.Connection;
import java.util.HashMap;
import java.util.Iterator;

/**
 * The Class GridConnector.
 */
public class GridConnector extends BaseConnector {
    
    /** The extra info , which need to be mixed in output */
    protected StringBuffer extra_output = new StringBuffer();
    
    /** The collections of options */
    protected HashMap<String,BaseConnector> options = new HashMap<String,BaseConnector>(); 
    
    /**
     * Instantiates a new grid connector.
     * 
     * @param db the db connection
     */
    public GridConnector(Connection db){
        this(db,DBType.Custom);
    }

    /**
     * Instantiates a new grid connector.
     * 
     * @param db the db connection
     * @param db_type the db type
     */
    public GridConnector(Connection db, DBType db_type){
        this(db,db_type, new GridFactory());
    }
    
    /**
     * Instantiates a new grid connector.
     * 
     * @param db the db connection
     * @param db_type the db type
     * @param a_factory the class factory, which will be used by object
     */
    public GridConnector(Connection db, DBType db_type, BaseFactory a_factory){
        super(db,db_type,a_factory);
    }

.....................

创建本地数据库连接

Connection conn= null;
        try {

            //获得数据库连接
            conn = ConnectionManager.getConnection();

            //Dhtmlx连接
            GridConnector c = new GridConnector(conn,DBType.MSSQL);

DHTMLX支持当前主流的数据库

 * The Enum DBType.
 * 
 * Stores supported DB types
 */
public enum DBType {
    
/** The Common SQL. */
    SQL,
/** The MySql. */
MySQL,
/** The Oracle. */
Oracle,
/** The MSSQL. */
MSSQL,
/** The PostgreSql. */
PostgreSQL,
/** The Custom DB type ( will be defined by class factory ) */
Custom
}

查询方式

import java.sql.Connection;

import com.dhtmlx.connector.*;


// TODO: Auto-generated Javadoc
/**
 * The Class SQLBasicConnector.
 */
public class Grid_01a_SQLBasicConnector extends ConnectorServlet {

    /* (non-Javadoc)
     * @see com.dhtmlx.connector.ConnectorServlet#configure()
     */
    @Override
    protected void configure() {
        Connection conn= ( new DataBaseConnection()).getConnection();
        
        GridConnector c = new GridConnector(conn);
        c.dynamic_loading(100);//加载100条数据
        //标识主键,列出与前台所关联的字段
        c.render_sql("SELECT grid50000.item_id as ID , grid50000.item_nm FROM grid50000",
                "item_id(ID)","grid50000.item_id(ID),item_nm");
    }
}