dreamsky_boy的专栏

一、List<int>转String 带逗号public static void main(String[] args) { List<Integer> list = new ArrayList<>(); list.add(1); list.add(2); list.add(5); list.add(4); list.add(1); System.out.p...

打开conf文件夹下的web.xml文件。例如：        ppt        application/vnd.ms-powerpoint                rar        application/x-rar-compressed                mmap        application/MindManager     按照上面的例子

JAVA_HOME,CLASSPATH,PATH. 只有这三个java环境变量。 JAVA_HOME指向的是JDK的安装路径，例如:D:/Java/jdk1.6.0_02;在这路径下你应该能够找到bin、lib等目录；JAVA_HOME=D:/Java/jdk1.6.0_02            CLASSPATH是类的路径；前面加上点和分号，意为首先在当前目录查找；

让我不爽的就是那个破开源数据库和tomcat放在一起，我就想把它弄下去，看着很不爽，最后解决办法如下，window-->Preferences-->General-->Startup and Shutdown--> myeclipse derby把这个服务的勾选去掉，重启IDE就可以了,如果你不需要其它的服务,都可以关掉.

1、在java中使用import java.util.regex.Matcher;   import java.util.regex.Pattern;   public class RegexTest {       public static void main(String[] args) {           String xx = "^(?:(?!0000)[0-9]{4}([-/.

if(r.getJjsj()==null || "".equals(r.getJjsj())){     statement.setNull(2, java.sql.Types.VARBINARY);    }else{     statement.setString(2, r.getJjsj());    }

function popupWindow(linkLocation, winWidth, winHeight, type) { if (type == "" || type == undefined) {  type = "popup"; } var winLeft = (window.screen.width - winWidth) / 2; var winTop = (window.scree

%@page import="java.util.*,com.anhuily.callcenter.sysmanage.departmanage.*" %>/scripts/fileupload.js" type=text/javascript>/scripts/datagrid.js" type=text/javascript>/scripts/ajax.js" type=text/javasc