importjava.net.URL;importjava.net.URLClassLoader;publicclassAddDirectoryToClasspath{publicstaticvoidmain(String[]args){// 目录的绝对路径StringdirectoryPath="/path/to/directory";// 将目录的绝对路径转换为URL格式URLurl=null;try{url=newURL("file://"+directoryPath);}catch(Exceptione){e.printStackTra...
publicclassTestCase{publicstaticvoidmain(String[]args){ServiceLoader<Search>s=ServiceLoader.load(Search.class);Iterator<Search>iterator=s.iterator();while(iterator.hasNext()){Search search=iterator.next();search.searchDoc("hello world");}}} 可以看到输出结果:文件搜索 hello world 如果在com.cainiao.ys...
The rule is that-classpathoption, when used to start the java application, overrides theCLASSPATHenvironment variable. If none are specified, thecurrent working directoryis used as classpath. This means that when our working directory isD:\myprogram\(onLinux,/home/user/myprogram/), we would n...
接下来,点击“Add”添加一个新的JRE,选择Standard VM后点击下一步,在JRE home中点击Directory选择JDK按钮路径下的jre文件夹(即包含rt.jar的文件夹,rt.jar是jdk的根文件夹,里面包含了所有的基本类)如图,然后点击“Add External JARs”选择生成好的tools.jar文件(最好先别tools.jar放在一个比较访问,比较安全的文件...
java.lang.ClassNotFoundException: 类找不到异常 造成异常的常见原因: 所需要的支持类库放错了模块,Spring容器找不到这个类。 使用了重复的依赖,且版本不一致。导致低版本的被优先使用。 类名错了,一般是使用Class.forName的时候,手动指定了类名的情况。
class ldap_sever { private static final String LDAP_BASE = "dc=example,dc=com"; public static void main ( String[] tmp_args ) { String[] args=new String[]{"http://127.0.0.1:8081/#test"}; int port = 7777; try { InMemoryDirectoryServerConfig config = new InMemoryDirectoryServer...
Main-Class:MyAppClass-Path:mylib.jar Using wildcard option We can also include multiple JAR files by using the wildcard option. The files that we want to add must be stored in a single directory The command for this operation is as follows − ...
Using wildcards in java classpath Wildcards were introduced in Java 6 to enhance classpath configurations. Class path entries can now include the basename wildcard character "", which effectively represents a list of all the files in the directory with the extensions .jar or .JAR. For instance...
at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ...3more 或 Exception in thread"main"java.lang.NoSuchFieldError: INSTANCE ...
然后进行搜索，接下来就能够看到对应的group中包含的artifacts，例如你正在使用的directory-watcher。