xpages不同数据库共享ssjs

        如果在xpages不同的数据库可以共享ssjs就方便了，类似于前端的js一样，这是以前的想法。最近在网上真的看到这篇类似文章，以下是做个简单的demo,有时间交流:QQ 873968102

demo下载

0)这里是原文

http://hasselba.ch/blog/?p=832

1)引用java类

package ch.hasselba.xpages.util.ssjs;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import com.ibm.xsp.util.StreamUtil;import com.ibm.xsp.page.compiled.ExpressionEvaluatorImpl;import javax.faces.context.FacesContext;import javax.faces.el.ValueBinding;public class SSJSUtil {private static final String NEWLINE = "\n";    private static final String SSJS_EXPRESSION_BEGIN = "#{javascript:";    private static final String SSJS_EXPRESSION_END = "}";    /**     * Loads SSJS code from a given URL and executes it     * Declared methods and objects are reachable for other SSJS code     *      * @param url of the SSJS code     * @return Object resulting object from SSJS execution     * @author Sven Hasselbach     * @version 1.0.1     * @category Utility     */    public static Object executeSSJSFromURL( final String url ){        return execute( loadFromURL( url ) );    }    /**     * loads a URL stream and converts it to a string     * @param url of the resource     * @return String containing the data loaded from given url     * @author Sven Hasselbach     * @version 1.0.1     * @category Utility     */    public static String loadFromURL( final String url ){        String ret = null;        try{            FacesContext fc = FacesContext.getCurrentInstance();            InputStream in = StreamUtil.getInputStream(fc, url);            ret = inputStreamToString( in );        }catch(Exception e){            e.printStackTrace();        }        return ret;    }    /**     * executes given SSJS code and returns the result (if any)     * functions / libraries are added to runtime      *      * @param ssjsCode code to execute     * @return resulting object     * @author Sven Hasselbach     * @version 1.0.2     * @category SSJS     */    public static Object execute( final String ssjsCode ){        Object ret = null;        try{            String valueExpr = SSJS_EXPRESSION_BEGIN + ssjsCode + SSJS_EXPRESSION_END;            FacesContext fc = FacesContext.getCurrentInstance();            ExpressionEvaluatorImpl evaluator = new ExpressionEvaluatorImpl( fc );            ValueBinding vb = evaluator.createValueBinding( fc.getViewRoot(), valueExpr, null, null);            ret = vb.getValue(fc);        }catch(Exception e){            e.printStackTrace();        }        return ret;    }    /**     * converts the data from a given inputstream to a string     *      * @param in InputStream to convert     * @return String containing data from input stream     * @throws IOException     * @author Sven Hasselbach     * @version 1.0.1     * @category Utility     */    public static String inputStreamToString(final InputStream inStream) throws IOException {        BufferedReader bufReader = new BufferedReader( new InputStreamReader(inStream) );        StringBuilder strBuilder = new StringBuilder();        String line = null;        while ((line = bufReader.readLine()) != null) {            strBuilder.append(line);            strBuilder.append( NEWLINE );        }        bufReader.close();        return strBuilder.toString();     }}

2)写个ssjs放到html路径下面

function test(){return "I am a ssjs test";}function hello(){return 'hello world!'}function geturl(){return context.getUrl();}

3）在xpages页面引用

<xp:view xmlns:xp="http://www.ibm.com/xsp/core"><xp:label id="label1"><xp:this.value><![CDATA[#{javascript:importPackage( ch.hasselba.xpages.util.ssjs );var url=@Left(context.getUrl(),context.getUrl().getPath())+'/873968102.jss';SSJSUtil.executeSSJSFromURL(url);test();         }]]></xp:this.value></xp:label><xp:br></xp:br><xp:label id="label2"><xp:this.value><![CDATA[#{javascript://SSJSUtil.executeSSJSFromURL(url);hello();         }]]></xp:this.value></xp:label><xp:br></xp:br><xp:br></xp:br><xp:br></xp:br><xp:inputText id="inputText1" defaultValue="#{javascript:geturl();}"style="width:364.0px"></xp:inputText></xp:view>