Lei Guoguo

perfect score

Please see the jdbc api
DatabaseMetaData dbmd = conn.getMetaData();

you can try String.valueOf();

Rahul, thank you very muck. i believe i was understood what you said

hi, everyone, i have a question for HQL

we have two classes A and B, there have one-to-many relation, A is one, B is many.
and B had a field x.

question is: selected all the A's instance, required is B.x is equals 1.

please give the HQL

my answer is :
FROM A a WHERE a.b.id in (SELECT b.id FROM B b WHERE b.x = 1)

advance thanks everyone

public void close() throws IOException { synchronized (lock) { if (in == null) return; in.close(); in = null; cb = null; } }
uper code is java source in java.io.BufferedReader, you know , in this method, in = null;

see under code
public BufferedReader(Reader in, int sz) { super(in); if (sz <= 0) throw new IllegalArgumentException("Buffer size <= 0"); this.in = in; cb = new char[sz]; nextChar = nChars = 0; } public BufferedReader(Reader in) { this(in, defaultCharBufferSize); }
key code is super(in);
now , we can see the super class java.io.Reader
protected Reader(Object lock) { if (lock == null) { throw new NullPointerException(); } this.lock = lock; }

i think, you are understood, the inputstream in bufferedreader is null when we close the invoke java.io.BufferedReader.close()

if you can use jstl tag, you can write like under code

<c:forEach items="${groupA[3] }" var="item" > <c:out value="${item }" /> </c:forEach>

if not

<%page.setAttribute("groupB", ((Object[])request.getAttribute("groupA"))[3]) %>
<logic:iterator />

<html:link action="${please write your action property name in here }"

you can give the placeholder in the jsp page by this tag <html:errors />

if you not assign any attribute in this tag, you will get all errors message.
if you want to get property designated, you can use the attribute "property" like this
<html:errors property="name" />

write the ajax implements for yourself?

a href="jsp/admin/cc.jsp" LINK

this link in which jsp page? please give the jsp page name and its folder

using like this:
<td class="textGrey10pt"><a href="#.do?id=<%=objCaseStudyBean.getStrConsulBgiID()%>"><div align="center"><%=objCaseStudyBean.getStrConsulBgiID()%></a></div></td>

you can use the struts multiply modules develop.
in the web.xml you can config like this:

<servlet> <servlet-name>action</servlet-name> <servlet-class>org.apache.struts.action.ActionServlet</servlet-class> <init-param> <param-name>config</param-name> <param-value>/WEB-INF/struts-config.xml</param-value> </init-param> <init-param> <param-name>config/loginmodule</param-name> <param-value>/WEB-INF/struts-config-loginmodule.xml</param-value> </init-param> <init-param> <param-name>config/registermodule</param-name> <param-value>/WEB-INF/struts-config-registermodule.xml</param-value> </init-param> <init-param> <param-name>config/accessmodule </param-name> <param-value>/WEB-INF/struts-config-accessmodule .xml</param-value> </init-param> <init-param> <param-name>debug</param-name> <param-value>3</param-value> </init-param> <init-param> <param-name>detail</param-name> <param-value>3</param-value> </init-param> <load-on-startup>0</load-on-startup> </servlet> <servlet-mapping> <servlet-name>action</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping>[

you can use the dwr for Ajax framework,

you can definited these key in your MessageResource.properties
errors.prefix.highlight=<font color="red"> errors.suffix.highlight=</font>

in your html page you can used like this
<html:errors prefix="errors.prefix.highligh" suffix="errors.suffix.highlight" />