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Night舞夜:
我的怎么不行呀。我用的版本是3.5
poi 数字处理 -
wilhard:
还真有办法,谢谢
axis2手动设置命名空间targetNamespace -
zgysc:
一句话点醒梦中人啊
idea debug下启动不能进入断点 -
wzb56:
window->preference->java- ...
如何调整eclipse每行的字数 -
luckiwiH:
太厉害了
Eclipse 设置文件的默认打开方式
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右键项目属性,在Flex Compiler里面,Additional Compiler arguments这个文本框中添加: -locale en_US -allow-source-path-overlap=true -source-path=D:\MyEclipse\FlexViewer\src\com\esri\solutions\flexviewer\nls\en_US 记住哦,这个-source-path里面的路径是你项目工程中nls资源的路径。重新编译.
设置flex build path时出现以下错误:
Main application must be in the list of application paths.
出现的原因就是没有默认的Application,在Flex Applacations项添加主mxml文件,并设为默认。点击OK.重新打开build path即可。
错误:Server SDK: Directory does not contain a Flex SDK
1.修改flex compiler(在项目上双击右键,选择property),将sdk version选择成第二个(use sprcial...)
2.clean整个的项目,
发现开始编译。
Window->Preferences->MyEclipse Enterprice Workbench->Servers->Tomcat->选择你的Tomcat(比如Tomcat 6.x)->点左边的+号->点击JDK->Tomcat JDK name->点击右边的Add->把你的JDK配置进去,默认的JDK是不行的
delete from grade where id not in(select id from grade group by userid,de
gree,subject);
出现错误:
ERROR 1093 (HY000): You can't specify target table 'grade' for update in FROM clause
解决办法:
delete from grade where id not in(select id from (select * from grade) g
group by userid,degree,subject);
public void test4() throws Exception{
Class clazz = Class.forName("cn.itcast.reflect.Person");
Constructor c = clazz.getDeclaredConstructor(List.class); //public
c.setAccessible(true); //暴力反射
Person p = (Person) c.newInstance(new ArrayList());
System.out.println(p.na ...
public class TestAppend {
public static void change(StringBuffer x,StringBuffer y)
{
x.append(y); //x-->AB
x = y; //x指向y-->B
System.out.println(x);//x-->B
System.out.println(y);//y-->B
...
1.先删除主键
alter table T_SF_SUPPLIER drop constraint PK_T_SF_SUPPLIER;
2.增加主键
alter table T_SF_SUPPLIER
add constraint PK_T_SF_SUPPLIER primary key (sp_id)
using index
tablespace SYSTEM
pctfree 10
initrans 2
maxtrans 255
storage
(
initial 64K
minextents 1
maxextents unlimit ...
public abstract class A {
int i=1;
public void printI() {
System.out.println("i="+i);
}
}
public class B extneds A{
int i=2;
public static void main(String[] args) {
B b=new B();
b.printI();
...
错误截图:
版本错误:我在工程里面用的是1.5,但eclipse里面的是1.6(点击window->preferences打开)
将其调整为1.5即可
在SQL Server 2005中批量修改表的架构,执行以下SQL,将执行结果拷贝出来,批量执行既可。
declare @name sysname
declare csr1 cursor
for
select TABLE_NAME from INFORMATION_SCHEMA.TABLES
open csr1
FETCH NEXT FROM csr1 INTO @name
while (@@FETCH_STATUS=0)
BEGIN
SET @name='旧的架构名称.' + @name
print 'Alter SCHEMA dbo TRANSFER ' + ...
1.MySQLAdministrator软件可以将oracle中的表导出为mysql的sql脚本,注意修改编码为utf8
CREATE DATABASE IF NOT EXISTS `ehr`
CHARACTER SET utf8;
2.利用navicat的运行sql脚本功能插入数据
3.貌似只能导出表结构及数据,视图无法导出
关于sql server 导入导出的错误提示解决:
注册表的问题:
复制以下内容到文本文档,然后改后缀名为.reg,运行即可解决!
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{00020404-0000-0000-C000-000000000046}]
@="IEnumVARIANT"
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{00020404-0000-0000-C000-000 ...
This parser does not support specification "null" version "null"
java.lang.UnsupportedOperationException: This parser does not support specificat
ion "null" version "null"
at javax.xml.parsers.SAXParserFactory.setXIncludeAware(SAXParserFactory.
java:390 ...
<link rel="stylesheet" type="text/css"href="../resources/css/ext-all.css"/>
<script type="text/javascript"src="../adapter/ext/ext-base.js"></script>
<script type="text/javascript"src="../ext-all.js">< ...