After an item has been scraped by a spider,it is sent to the Item Pipeline which process it through several components that are executed sequentially....
分类：
其他好文 时间：
2014-07-14 00:20:06
阅读次数：
323
Given two sorted integer arrays A and B, merge B into A as one sorted array.
Note:
You may assume that A has enough space (size that is greater or equal to m + n) to hold additional elements from ...
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其他好文 时间：
2014-07-13 17:21:40
阅读次数：
208
Given a linked list, determine if it has a cycle in it.
Follow up:
Can you solve it without using extra space?
/**
* Definition for singly-linked list.
* class ListNode {
* int val;
* ...
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其他好文 时间：
2014-07-13 16:32:04
阅读次数：
152
/*
A - 广搜 基础
Time Limit:2000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u
Submit
Status
Description
Farmer John has been informed of the location of a fugitive cow and wants to catch...
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其他好文 时间：
2014-07-13 16:14:50
阅读次数：
236
<?phpdefined(‘ACC‘)||exit(‘AccessDenied‘);classModel{protected$db=null;publicfunction__construct(){try{$this->db=mysql::getIns();}catch(Exception$e){//$e就是前文中throw出来的$error(Exception的实例)//$e对象有一些方法和属性,能准确判断出问题的行.$err=‘‘;..
分类：
Web程序 时间：
2014-07-13 14:48:25
阅读次数：
193
Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given sum.
For example:
Given the below binary tree and sum
...
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其他好文 时间：
2014-07-13 13:58:01
阅读次数：
184
Antenna Placement
Time Limit: 1000MS
Memory Limit: 65536K
Total Submissions: 6334
Accepted: 3125
Description
The Global Aerial Research Centre has been allotted the...
分类：
其他好文 时间：
2014-07-12 23:03:24
阅读次数：
222
Exception in thread "HSQLDB Connection @429be9" java.lang.OutOfMemoryError: Java heap space
在服务器下的data/xxxx也就是数据库路径下，我的在F:\tomcat7\bin\data下删掉关于xxxx的文件及文件夹。...
分类：
数据库 时间：
2014-07-12 22:08:20
阅读次数：
338
1、错误描述
2014-7-10 23:12:23 org.apache.catalina.core.StandardContext filterStart
严重: Exception starting filter struts2
java.lang.NoClassDefFoundError: org/apache/commons/lang3/StringUtils
at com.opens...
分类：
编程语言 时间：
2014-07-12 21:34:37
阅读次数：
649
今天在pdf和excel中都实现了在浏览器弹出下载框
将之前在网上查找的生成excel表格代码稍微修改下：
public class CreateSimpleExcelToDisk {
/**
* @功能：手工构建一个简单格式的Excel
*/
private static List getNews() throws Exception
{
List data = new A...
分类：
编程语言 时间：
2014-07-12 16:57:35
阅读次数：
267
