我的JavaWebStart（使用Netbeans）应用程序在apache webserver（localhost）上部署和运行得很好，但是当我将它连接到它的mysql DB时，它只部署但不起作用。但是，它在Netbeans中的连接非常好。
我尝试使用'keytool'登录jar文件，但cmd也无法识别'keytool'。 如何将此应用程序连接到其数据库？
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<jnlp codebase="http://192.168.0.10/JWS2" href="launch.jnlp" spec="1.0+">
<information>
<title>JavaWebStart2</title>
<vendor>Administrator</vendor>
<homepage href=""/>
<description>JavaWebStart2</description>
<description kind="short">JavaWebStart2</description>
<offline-allowed/>
</information>
<update check="background"/>
<resources>
<j2se version="1.8+"/>
<jar href="JavaWebStart2.jar" main="true"/>
<jar href="lib/mysql-connector-java-5.1.18.jar"/>
</resources>
<application-desc main-class="main.NewJFrame">
</application-desc>
</jnlp>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Test page for launching the application via JNLP</title>
</head>
<body>
<h3>Test page for launching the application via JNLP</h3>
<a href="launch.jnlp">Launch the application</a>
<script src="http://java.com/js/deployJava.js"></script>
<script>
deployJava.createWebStartLaunchButton("launch.jnlp")
</script>
<!-- Or use the following link element to launch with the application --
>
<!--
-->
</body>
</html>