小编son*_*ida的帖子

我在重新启动Tomcat后向Tomcat部署文件war时遇到了韩国egovframework的问题,它显示如下错误:

2011-12-23 09:16:01,101 ERROR [org.springframework.web.servlet.DispatcherServlet] Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'imageRenderer' defined in ServletContext resource [/WEB-INF/config/egovframework/springmvc/egov-com-servlet.xml]: Initialization of bean failed; nested exception is java.lang.NoSuchMethodError: javax.servlet.ServletContext.getContextPath()Ljava/lang/String;
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
        at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:442)
        at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:458)
        at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:339)
        at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:306)
        at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:127)
        at javax.servlet.GenericServlet.init(GenericServlet.java:212)
        at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1139)
        at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:791)
        at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:660)
        at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:469)
        at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:403)
....................................................

我用了 :

[root@localhost bin]# java -version

java version "1.6.0_20"
OpenJDK …

Android 新版本 - “Lollipop”（API 21）带来了很多变化，但如果您希望将您的应用程序定位到该 API，它会付出一些代价。

当我们开始让我们的应用程序适应新的 API 时，我们遇到的第一个问题是 IllegalArgumentException: Service Intent must be explicit

如果您遇到了该问题，并且您实际上打算以显式方式使用您的意图（这意味着在启动服务时您希望恰好命中 1 个服务操作），那么这里有一个快速解决方法来转换隐式 --> 显式：

public static Intent createExplicitFromImplicitIntent(Context context, Intent implicitIntent) {
        // Retrieve all services that can match the given intent
        PackageManager pm = context.getPackageManager();
        List<ResolveInfo> resolveInfo = pm.queryIntentServices(implicitIntent, 0);

        // Make sure only one match was found
        if (resolveInfo == null || resolveInfo.size() != 1) {
            return null;
        }

        // Get component info and create ComponentName
        ResolveInfo serviceInfo = resolveInfo.get(0);
        String packageName …