推荐下Js实现Sql 语句  探索莫坛

package com.ctaoyu.framework.module_all.util.js;import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;/*** * Js編譯引擎* * @author 彭秦進 rudys.eva@gmail.com* * @version 1.0* */
public class JSUtil {public static ScriptEngine jsEngine;static {initEngine();}/*** 初始化引擎* * @return*/private static void initEngine() {// create a script engine managerScriptEngineManager factory = new ScriptEngineManager();/*** create engine by name ScriptEngine engine = factory.getEngineByName* ("JavaScript"); // create engine by name ScriptEngine engine =* factory.getEngineByExtension ("js"); // create engine by name* ScriptEngine engine = factory.getEngineByMimeType* ("application/javascript");* */jsEngine = factory.getEngineByName("JavaScript");// return engine;}/*** 解释代码* * @param jsString* @throws Exception */public static void runEngine(String jsString) throws Exception {// TODO Auto-generated method stubJsDataSource sqltool = new JsDataSource();jsEngine.put("sqltool", sqltool);jsEngine.eval(jsString);}/*** * @param args*/public static void main(String[] args) {try {runEngine("");} catch (ScriptException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}}
}

package com.ctaoyu.framework.module_all.util.js;import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;import com.ctaoyu.framework.module_all.util.ds.ConnectFactory;/*** * DataSource 供Js使用或其他腳本語言使用* * @author 彭秦进 rudys.eva@gmail.com* * @version 1.0* */
public class JsDataSource {/*** 數據庫連接*/private Connection conn;private ResultSet resultSet;/*** @return the resultSet*/public ResultSet getResultSet() {return resultSet;}/*** @param resultSet*            the resultSet to set*/public void setResultSet(ResultSet resultSet) {this.resultSet = resultSet;}/*** @return the conn*/public Connection getConn() {return conn;}/*** @param conn*            the conn to set*/public void setConn(Connection conn) {this.conn = conn;}/*** open connection* * @throws Exception*/private void openConnect() throws Exception {this.conn = ConnectFactory.currentConnect();}/*** close connection* * @throws Exception*/public void closeConnect() throws Exception {this.resultSet.close();this.conn.close();ConnectFactory.closeConnect();}/*** 執行Sql語句* * @param sql* @throws Exception*/public void doSql(String sql) throws Exception {this.setResultSet(getConn().prepareStatement(sql).executeQuery());}/*** * 取下一條記錄* * @throws SQLException* */public int resultSetNext() throws SQLException {int flag;boolean nextB = getResultSet().next();if (nextB) {flag = 1;} else {flag = 2;}return flag;}/*** 去行記錄* * @param columnName* @return* @throws SQLException*/public String getString(String columnName) throws SQLException {return getResultSet().getString(columnName);}/*** JsDataSource構造函數* * @throws Exception*/public JsDataSource() throws Exception {openConnect();}}

JavaScript 脚本：

sqltool.dosql("select name from person");
while(sqltool.resultSetNext()==1){println(sqltool.getString(name));
}
sqltool.closeConnect();