小编lak*_*man的帖子

我在java中的netbeans 7.2中创建了一个gui应用程序.我在JFrame那里创造了一个.在自动生成的代码中设置为nimbus外观.但我的框架看起来不像雨云.

所以我调试代码,发现nimbus在返回的数组中不可用getInstalledLookAndFeels().

那么我该怎么做才能安装灵气的外观和感觉呢？JDK 1.6用于编译代码.

我正在尝试将值插入到SQLiteAndroid应用程序数据库中。我正在编写以下代码：

public class DataBaseAdapter extends SQLiteOpenHelper 
{
private static final int DATABASE_VERSION = 1;

// Database Name
private static final String DATABASE_NAME = "AlarmSystem";

// Alarm table name
private static final String TABLE_NAME = "Alarms";

//AlarmTable Columns names
private static final String KEY_ALARM_ID = "Id";
private static final String KEY_DESC = "Description";
private static final String KEY_REPEAT_DAY = "RepeatDay";
private static final String KEY_REPEAT_TYPE = "REPEAT_TYPE";
private static final String KEY_CALENDAR = "Calendar";
private static final String KEY_APP …

我想要一个简单编译器的源代码，通过为我的分配交换延迟分支的代码来优化。

我阅读了是否有一个针对小语言问题的简单编译器，并找到了几个不错的编译器。

但是几乎所有的都做了优化，有些链接失效了。有人可以为我推荐一个简单的编译器，用于一种没有为延迟分支实现优化的小语言。

我和maven再次面临问题.在我的JSP页面中,我想上传文件并添加一些输入文本字段.Tp过程我正在为MultipartRequest类添加cos.jar

这是我的pom

<dependency>
    <groupId>servlets.com</groupId>
    <artifactId>cos</artifactId>
    <version>05Nov2002</version>
</dependency>

当我运行mvn compile或mvn eclipse:eclipse正在将JAR下载到maven本地存储库时.但是没有添加到eclipse项目中.问题是什么？

我尝试使用wso2的身份服务器创建单点登录(SSO).我遵循这个教程:https://docs.wso2.com/display/IS500/Enabling+SSO+for+WSO2+Servers在我的情况下,我希望在DAS中使用Identity Server(IS)登录.我安装了DAS和IS,IS端口9443使用https,DAS端口9445使用https.当我尝试登录DAS时系统将我重定向到IS登录表单,这是正确的,但是当我写用户和密码时,系统会发出此错误(查看图像)

这是wso2is中的日志错误(使用IS:5.1.0,DAS:3.0.0):

[2016-01-05 08:58:18,866] ERROR {org.wso2.carbon.identity.sso.saml.processors.SPInitSSOAuthnRequestProcessor} -  Error processing the authentication request
org.wso2.carbon.identity.base.IdentityException: Error while signing the SAML Response message.
        at org.wso2.carbon.identity.base.IdentityException.error(IdentityException.java:162)
        at org.wso2.carbon.identity.sso.saml.util.SAMLSSOUtil.setEncryptedAssertion(SAMLSSOUtil.java:676)
        at org.wso2.carbon.identity.sso.saml.builders.DefaultResponseBuilder.buildResponse(DefaultResponseBuilder.java:75)
        at org.wso2.carbon.identity.sso.saml.processors.SPInitSSOAuthnRequestProcessor.process(SPInitSSOAuthnRequestProcessor.java:159)
        at org.wso2.carbon.identity.sso.saml.SAMLSSOService.authenticate(SAMLSSOService.java:164)
        at org.wso2.carbon.identity.sso.saml.servlet.SAMLSSOProviderServlet.handleAuthenticationReponseFromFramework(SAMLSSOProviderServlet.java:691)
        at org.wso2.carbon.identity.sso.saml.servlet.SAMLSSOProviderServlet.handleRequest(SAMLSSOProviderServlet.java:178)
        at org.wso2.carbon.identity.sso.saml.servlet.SAMLSSOProviderServlet.doGet(SAMLSSOProviderServlet.java:95)
        at org.wso2.carbon.identity.sso.saml.servlet.SAMLSSOProviderServlet.sendRequestToFramework(SAMLSSOProviderServlet.java:1025)
        at org.wso2.carbon.identity.sso.saml.servlet.SAMLSSOProviderServlet.sendToFrameworkForAuthentication(SAMLSSOProviderServlet.java:457)
        at org.wso2.carbon.identity.sso.saml.servlet.SAMLSSOProviderServlet.handleSPInitSSO(SAMLSSOProviderServlet.java:360)
        at org.wso2.carbon.identity.sso.saml.servlet.SAMLSSOProviderServlet.handleRequest(SAMLSSOProviderServlet.java:195)
        at org.wso2.carbon.identity.sso.saml.servlet.SAMLSSOProviderServlet.doPost(SAMLSSOProviderServlet.java:107)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
        at org.eclipse.equinox.http.helper.ContextPathServletAdaptor.service(ContextPathServletAdaptor.java:37)
        at org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61)
        at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:128)
        at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:60)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
        at org.wso2.carbon.tomcat.ext.servlet.DelegationServlet.service(DelegationServlet.java:68)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at org.wso2.carbon.ui.filters.CSRFPreventionFilter.doFilter(CSRFPreventionFilter.java:88)
        at …

我在我的应用程序中有html文档的打印方法.我无法访问物理打印机.因为我没有将计算机连接到物理打印机,所以我在代码中指定了"没有找到打印机服务".将计算机连接到没有物理打印机的打印机时,可以检查该功能是否正常工作？

     FileInputStream psStream = null;  
        try {  
            psStream = new FileInputStream("c:\\some.html");  
            } catch (FileNotFoundException ffne) {  
              ffne.printStackTrace();  
            }  
            if (psStream == null) {  
                return;  
            }  
        DocFlavor htmlStreamFlavor = new DocFlavor("text/html; charset=utf-16", "java.io.InputStream");  
        Doc myDoc = new SimpleDoc(psStream, htmlStreamFlavor, null);    
        PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();  
        PrintService[] services = PrintServiceLookup.lookupPrintServices(htmlStreamFlavor, aset);  

        // if several printers configured  
        PrintService myPrinter = null;  
        for (int i = 0; i < services.length; i++){ 
            String svcName = services[i].toString(); 
            System.out.println("service found: "+svcName);              
            if (svcName.contains("printer closest to me")){  
                myPrinter …

我使用eclipse juno创建了一个maven项目并编辑了pom文件.当我使用命令提示符"mvn clean install"运行pom文件时,我收到此错误.

[ERROR] The build could not read 1 project -> [Help 1]
[ERROR]
[ERROR]   The project se.cambio.platform.sdk:sdk-documentation-samples-laki:1      (F:\newWorkspace\sdk-documentation-samples-laki\pom.xml) has 2 errors
[ERROR]     'dependencies.dependency.version' for se.cambio.platform.sdk:sdk-client:jar    must be a valid version but is '${version.sdk.client}'. @ line 38, column 16
[ERROR]     'dependencies.dependency.version' for se.cambio.platform.sdk:sdk-common:jar   must be a valid version but is '${version.sdk.common}'. @ line 44, column 16
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the …

我有一个ArrayList<Card> cards = new ArrayList<Card>我需要转换成的TreeSet<Card>.为此我做:

new TreeSet<Card>(cards)

毕竟我的大小TreeSet等于1. Card该类实现Comparable接口.我做错了什么或不做什么？

我在本教程中使用了代码片段来连接到MSSQL darabase.

http://www.java-tips.org/other-api-tips/jdbc/how-to-connect-microsoft-sql-server-using-jdbc.html

但是当我运行程序时,我收到了这个错误.

     java.sql.SQLException: Network error IOException: Connection timed out: connect
    at net.sourceforge.jtds.jdbc.ConnectionJDBC2.<init>(ConnectionJDBC2.java:410)
    at net.sourceforge.jtds.jdbc.ConnectionJDBC3.<init>(ConnectionJDBC3.java:50)
    at net.sourceforge.jtds.jdbc.Driver.connect(Driver.java:184)
    at java.sql.DriverManager.getConnection(DriverManager.java:579)
    at java.sql.DriverManager.getConnection(DriverManager.java:221)
    at DB.dbConnect(Test.java:28)
    at Test.main(Test.java:12)
Caused by: java.net.ConnectException: Connection timed out: connect
    at java.net.DualStackPlainSocketImpl.connect0(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:69)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:157)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391)
    at java.net.Socket.connect(Socket.java:579)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at net.sourceforge.jtds.jdbc.SharedSocket.createSocketForJDBC3(SharedSocket.java:307)
    at net.sourceforge.jtds.jdbc.SharedSocket.<init>(SharedSocket.java:257)
    at net.sourceforge.jtds.jdbc.ConnectionJDBC2.<init>(ConnectionJDBC2.java:311)
    ... 6 more

我的连接网址是

db.dbConnect(
     "jdbc:jtds:sqlserver://CSLK-PT12DB:1434/R8_JBOSS_MSSQL_Archived_Migrated_Beta","spider3","spider3");
    }

这个例外的原因是什么以及如何解决？