小编Jaa*_*nus的帖子

我真的很困惑,我的春季应用程序的地址是如何产生的.我按照教程,但现在我想改变地址,但我找不到这个地方.

目前的地址是:http:// localhost:8080/HelloWorld /

我在哪里可以将HelloWorld更改为其他内容？

我会为您提供您需要的任何代码.我有两个conf文件:web.xml,spring-servlet.xml,但它们中没有任何内容包含HelloWorld.

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-3.0.xsd">

    <context:component-scan base-package="hello.spring3.controller" />

    <bean id="viewResolver"
        class="org.springframework.web.servlet.view.UrlBasedViewResolver">
        <property name="viewClass" 
            value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp" />
    </bean>

</beans>

和web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee" 
    xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    id="spring3" version="3.0">

    <display-name>Spring display name</display-name>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>

    <servlet>
        <servlet-name>spring</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>spring</servlet-name> 
        <url-pattern>*.html</url-pattern>
    </servlet-mapping>


    </web-app>

这是一个例子:

http://www.tutorialspoint.com/java/java_using_singleton.htm

在查看第一个示例时,当用户写入:时Singleton.getInstance(),它会调出:

new Singleton()

我不知道它是什么单身,每当它创建一个新的单例对象时？

我理解第二个例子.如果singleton为null,则创建新对象,但在第一个示例中,它始终创建新对象??

那是怎么回事？

我有阵列 [1,2,1,2,3,4,3,4,1,2]

我想循环x次,每次向前移动每个元素1位置的数组:

所以下一个循环将是:

2.[2,1,2,3,4,3,4,1,2,1]

3. [1,2,3,4,3,4,1,2,1,2]

等等....

我怎样才能像这样操纵数组呢？

编辑:

我的想法,但也许一些更好的技巧:

只需使用while循环遍历数组并使用for循环创建新数组.

for i in range(11)
    array[i] = array[i-1]

等等.伪代码

Public Sub SavePendleValues(ByVal row1 As Integer, ByVal row2 As Integer)

打电话给它

For sheetrow = 2 To 15 ' number of rows to scan
    SavePendleValues (sheetrow, sheetrow)
Next sheetrow

得到错误: Compile error: Syntax error

当我取消注释该行时: SavePendleValues (sheetrow, sheetrow)

一切正常.

这是我如何定义我的jsp文件的loaction:

<bean id="jspViewResolver"
    class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="viewClass"
        value="org.springframework.web.servlet.view.JstlView" />
    <property name="prefix" value="/WEB-INF/jsp/" />
    <property name="suffix" value=".jsp" />
</bean>

但是我目前在一个文件夹中有太多的JSP文件......我将我的直接结构改为:

/WEB-INF/jsp/city/*.jsp
/WEB-INF/jsp/weather/*.jsp

我该如何更改我的viewresolver以便找到这两个地方？

如果需要,请询问更多信息.

这是我的HTML代码:

<h3>Ilm selles linnas</h3>
<table>
    <tr>
        <th>id</th>
        <th>city_id</th>
        <th>temp</th>
        <th>date</th>
    </tr>
    <div id="info"></div>
</table>

这是我的脚本:

function(data) {
            $('#info').empty();
            var html = "";
            for(var i = 0; i < data.length; i++) {
                html += "<tr>"+
                    "<td>"+data[i].id+"</td>"+
                    "<td>"+data[i].city_id+"</td>"+
                    "<td>"+data[i].temperature+"</td>"+
                    "<td>"+data[i].date+"</td>"+
                "</tr>";                
            }
            $('#info').append(html);
}

完成此操作后,在实际输出中会发生这种情况:

所以:

1)所有信息都高于表头(<th>标签)

2)所有信息都不在列中,而是一起粉碎

3)HTML源代码中没有显示任何信息.

我必须改变什么才能让它看起来应该如此？

随意问任何问题.

我有一个像这样的字符串:

06%2F27%2F2012%2C07%2F05%2F2012%2C06%2F29%2F2012%2C07%2F05%2F2012%2C07%2F06%2F2012%2C07%2F19%2F2012%2C07%2F06%2F2012%2C07%2F19%2F2012%2C07%2F05%2F2012%2C07%2F05%2F2012%2C07%2F20%2F2012%2C07%2F20%2F2012%2C07%2F27%2F2012%2C08%2F02%2F2012%2C07%2F20%2F2012%2C07%2F26%2F2012%2C08%2F03%2F2012%2C08%2F06%2F2012%2C08%2F06%2F2012%2C08%2F17%2F2012

我希望它像这样拆分它的值:

%2F should be /

%2C marks the starting of new string

所以价值观如下:

06/27/2012,07/05/2012等

我尝试为此创建一些正则表达式,但没有成功.

我试过的例子:

String phrase = "06%2F27%2F2012%2C07%2F05%2F2012%2C06%2F29%2F2012%2C07%2F05%2F2012%2C07%2F06%2F2012%2C07%2F19%2F2012%2C07%2F06%2F2012%2C07%2F19%2F2012%2C07%2F05%2F2012%2C07%2F05%2F2012%2C07%2F20%2F2012%2C07%2F20%2F2012%2C07%2F27%2F2012%2C08%2F02%2F2012%2C07%2F20%2F2012%2C07%2F26%2F2012%2C08%2F03%2F2012%2C08%2F06%2F2012%2C08%2F06%2F2012%2C08%2F17%2F2012";
String delims = "REGEX_GOES_HERE";
String[] tokens = phrase.split(delims);

可能重复:
&&(AND)和|| (或)在Java IF语句中

if(foo || bar) {

}

当foo为真时,它甚至会进入吧台吗？

我喜欢这样的页面:

www.foo1.bar
www.foo2.bar
www.foo3.bar
.
.
www.foo100.bar

我正在使用库jsoup并使用Thread同时连接到每个页面:

Thread matchThread = new Thread(task);
matchThread.start();

每个任务,连接到这样的页面,并解析HTML:

Jsoup.connect("www.fooX.bar").timeout(0).get();

获得大量的这些例外:

java.net.ConnectException: Connection timed out: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:529)
at sun.net.NetworkClient.doConnect(NetworkClient.java:158)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:388)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:523)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:227)
at sun.net.www.http.HttpClient.New(HttpClient.java:300)
at sun.net.www.http.HttpClient.New(HttpClient.java:317)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:970)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:911)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:836)
at org.jsoup.helper.HttpConnection$Response.execute(HttpConnection.java:404)
at org.jsoup.helper.HttpConnection$Response.execute(HttpConnection.java:391)
at org.jsoup.helper.HttpConnection.execute(HttpConnection.java:157)
at org.jsoup.helper.HttpConnection.get(HttpConnection.java:146)

jsoup是否只允许同时使用1个线程？或者我做错了什么？有关如何更快地连接到我的页面的任何建议,因为逐个进行需要很长时间.

编辑:

所有700个线程都使用这种方法,也许这就是问题所在.这个方法可以处理这个数量的线程还是单例？

private static Document connect(String url) {
    Document doc = null;
    try {
        doc = Jsoup.connect(url).timeout(0).get(); …

我的pojo看起来像这样:

@Entity
@Table(name = "USERS")
public class User {

当我保留名称时,一切正常,hibernate sql log:

 create table users (id int8 not null, username varchar(255), primary key (id))

当我删除注释时,我得到:

Hibernate: create table user (id int8 not null, username varchar(255), primary key (id))
19:24:43 [localhost-startStop-23] ERROR o.h.tool.hbm2ddl.SchemaExport - HHH000389: Unsuccessful: create table user (id int8 not null, username varchar(255), primary key (id))
19:24:43 [localhost-startStop-23] ERROR o.h.tool.hbm2ddl.SchemaExport - ERROR: syntax error at or near "user" Position: 14

我试图使用它,因为它在我的xml中定义:

<property name="hibernate.ejb.naming_strategy" value="org.hibernate.cfg.ImprovedNamingStrategy" />

任何建议,为什么命名策略不起作用？