１）最近做上傳文件時遇到了討厭的亂碼問題！
現象是上傳純文本文件，顯示沒有問題，但是word文檔中有圖表就會出現亂碼！

原因，是由于我用了clob字段來保存文檔！

２）在下載時遇到中文文件名亂碼．解決方法是把文件名重新編碼！
?response.setHeader("Content-disposition", "attachment;filename=\"" +new String(bszn.getFileFileName().getBytes("gb2312"),"iso8859-1")+"\"");

mysql?的blob字段只有64k,要有大點的文件要用longBlob
??????????????????

#include<iostream>//快速排序不新建臨時數組
using namespace std;
void swap(int &a,int &b){
??? if(&a==&b)
???????? return;???
???? a=a^b;
???? b=a^b;
???? a=a^b;
???? }
void quick(int *a,int n)
{
???? if(n<=1)
???????? return ;
???? swap(*a,a[n>>1]);
???? int*lp=a+1;
???? int*rp=a+n-1;
???? while(rp-lp>=0)
???? {
????? if(*lp>*a)
??????????? {
???????????? if(*rp<*a){?????????????
?????????????? swap(*lp++,*rp--);
?????????????? }
???????????? else
?????????????? --rp;
??????????? }
????? else
???????? ++lp;???????????
????? }
? swap(*a,*rp);???
?????????????
??? int left=rp-a;
??? quick(a,left);
??? quick(a+left+1,n-left-1) ;??
?}
int main(){
??? int a[5]={0 ,5, 9, 8, 7 };
??? int b[10]={2,5,9,6,3,1,4,7,1 ,5 };
??? quick(b,10);
??? for(int i=0;i<10;i++)
??????????? cout<<b[i]<<' ';
??????????? cout<<endl;
??? char ch;
??? cin>>ch;
??? return 0;
??? }

#include<iostream>//一個快速排序的例子

using? namespace std;

void swap(int &a,int &b){
???? a=a^b;
???? b=a^b;
???? a=a^b;
???? }

void quick(int *a,int n){
???? if(n<=1)
???? return;
???? swap(*a,a[n>1]);//把中間的數作為分組的標準，并把它換到數組首
???? int *p=new int[n];
???? int*lp=p;
???? int*rp=p+n-1;
???? int*pt=a+1;
???? int pivot=*a;
???? for(int i=1;i<n;i++)//把數據 考到臨時數組
???????????? {
????????????? if(*pt>pivot)
??????????????????? *rp--=*pt++;
?????????????? else
??????????????????? *lp++=*pt++;??????????????????
???????????? }
?? *lp=pivot;
??? pt=a;
??? lp=p;
??? for(int i=0;i<n;i++)//把數據考回來
?????????? *pt++=*lp++;
? delete[] p;
? int left=rp-p;//計算左邊部分的元素個數
? quick(a,left);
?quick(a+left+1,n-left-1);?
}

?

int main(){
??
??? int a[11]={5,456,3219,416,4,64,31,987,1987,98731,9841};
?quick(a,11);
?
?for(int i=0;i<11;i++)
???????? cout<<a[i]<<' ';
???????? cout<<endl;
???????? char t;
???????? cin>>t;
???????? return 0;
??????
??????
??? }

#include<iostream>
using namespace std;
typedef int T;

class Node{
????? T data;
????? Node *next;
public:
?????? Node(T t):data(t),next(NULL){}
?????? friend class List;?????
?????? };
?????
class List{
????? Node * head;
????? int len;
public:
??????? List(int len=0):len(len),head(NULL){}
??????? ~List(){clear();}
??????? Node* & getp( int pos );　
??????? void insert( T d, int pos=0 );//插入
??????? int size();
??????? bool empty();
?????? ?void travel();//遍歷
????????void clear();
??????? int find( T d );//查找
??????? bool update( T d1, T d2 );//更新
??????? bool erase( T d );//刪除
??????? T getHead();
??????? T getTail();
??????? void reverse();
????? };
void List::insert(T d,int pos){
???? Node *p=new Node(d);
???? Node *&pn=getp(pos);
???? p->next=pn;
???? pn=p;
???? ++len;
???? }
????
Node*& List::getp(int pos){//返回一個引用而不是一個復制的數據
???? if(pos<0||pos>len)
??????????? pos=len;??????????????????
???? if(pos==0)
???????????? return head;
?????? Node*p=head;?????
???? for(int i=0;i<pos-1;i++)
??????????? p=p->next;
???? return p->next;
???? }
int List::size(){
??? return len;
??? }
bool List::empty(){
???? return head==NULL;
???? }?
??????
void List::clear(){
????? while(head!=NULL){
???? Node *p =head->next;
???? delete head;
???? head=p;
???? }??
???? len=0 ;???????????????
???? }
void List::travel(){
???? Node*p=head;
???? while(p!=NULL){
???? cout<<p->data<<' ';
???? p=p->next;??????????????
???? }
???? cout<<endl;??
???? }
int List::find( T d ){
???? Node*p=head;
???? int pos=0;
????
???? while(p!=NULL){
??????? if(d==p->data)
??????????? return pos;
??????? p=p->next;
??????? ++pos;???????????????
???? }????
?????????? return -1;
???? }
bool List::update( T d1, T d2 ){
???? int t=find(d1);
???? if(t==-1)
?????? return false;
???? Node*&p=getp(t);
???? p->data=d2;
???? return true;
???? }
bool List:: erase(T d){
???? int t=find(d);
???? if(t==-1)
?????? return false;
????? Node*&pn=getp(t);
????? Node*p=pn;
????? pn=pn->next;
????? delete p;
????? --len;?????
???? return true;
???? }
?void List:: reverse(){
????? Node *ph=head;
????? Node *p=NULL;
????? head=NULL;
????? while(ph!=NULL){
??????? p=ph;
??????? ph=ph->next;
???????
??????? p->next=head;
??????? head=p;
???? }
????
????? }
?????
T List::getHead(){
????? if(empty())
????????? return T();??????????
??????? return head->data;?????????
????? }
T? List::getTail(){
????? if(empty())
?????????? return T();
?????? return getp(len-1)->data;????????????
????? }
int main(){
??? List obj;
?obj.reverse();
?obj.travel();
?obj.insert(1,-1);
?obj.insert(2,-1);
?obj.insert(3,-1);
?obj.insert(4,-1);
?obj.insert(5);
?obj.insert(6);
?obj.insert(7);
?obj.insert(8);
?obj.insert(60,6);
?obj.insert(40,4);
?obj.insert(20,2);
?obj.travel();
?obj.reverse();
?obj.travel();
??? cout<<obj.find(60)<<endl;
?obj.update(20,600);
?obj.travel();
?obj.erase(600);
?obj.travel();
?cout<<obj.getHead()<<' '<<obj.getTail()<<endl;
?int t;
?cin>>t;
?return 0;
??? }

import jxl.Workbook;
import jxl.Sheet;

import java.io.*;
import java.nio.Buffer;

/**
?* Created by IntelliJ IDEA.
?* User: sunny
?* Date: 2006-9-27
?* Time: 15:25:39
?* To change this template use File | Settings | File Templates.
?*/
public class a {

??? public static void main(String args[]) {
??????? StringBuffer buffer = new StringBuffer();
??????? try {
??????????? FileWriter out = new FileWriter("C:\\Documents and Settings\\sunny\\桌面\\kd.txt");
??????????? Workbook workbook = Workbook.getWorkbook(new File("C:\\Documents and Settings\\sunny\\桌面\\kd.xls"));
??????????? Sheet sheet = workbook.getSheet("kd");
??????????? int r = sheet.getRows();
??????????? int c = sheet.getColumns();
??????????? buffer.append("numleng=").append(r).append("&");
??????????? for (int i = 0; i < r; i++) {
??????????????? for (int j = 0; j < c; j++) {
??????????????????? buffer = buffer.append("n").append(i).append("=").append(sheet.getCell(j, i).getContents()).append("&");
??????????????????? //?? System.out.print(sheet.getCell(j, i).getContents());
??????????????? }
??????????? }
?????????? out.write(buffer.toString());
??????????? workbook.close();
??????? } catch (Exception e) {
??????????? System.out.println(e);
??????? }
??????? {
??????? }
??? }
}

終于搞出來了把它寫下來備份一下！我用的是apache_2.0.59-win32-x86-no_ssl(1).msi 和 resin3.0.18

先把resin3.0.18 下的mod_caucho.dll考到apache的modules下再把下面一段考到httpd.conf的后面就ok了

LoadModule caucho_module modules/mod_caucho.dll
ResinConfigServer localhost 6802
CauchoStatus yes
?<LocationMatch "/WEB-INF/">
? AllowOverride None
? deny from all
?</LocationMatch>
?<LocationMatch "/META-INF/">
? AllowOverride None
? deny from all
?</LocationMatch>?
?<IfModule mod_caucho.c>
ResinConfigServer localhost 6802
<Location /caucho-status>
SetHandler caucho-status
</Location>
</IfModule>
AddHandler caucho-request .action? .jsp
<Location /servlet/*>
SetHandler caucho-request
</Location>

這跟apache 的版本有關如果在2.2apache就會報錯！ ???前幾天在寫代碼的時又遇到一個頁面不能顯示一個list的錯誤！
???現象：后臺可以打出log（list.size()）。但是頁面上用c 標簽顯示時，提示類型錯誤。用ww標簽可以輸出? 循?環，但是具體的property顯示不出來！
原因：原來是在用Hibernate 的createMysqlQuery()時沒有加上addEntity().也就是hibernate 返回的是一個object 的list。而我在頁面上是把這個list ，當作具體的對象的list操作的！所以才出現了這樣的錯誤！
啟發：在與數據庫打交道時要注意把object轉換成具體的class！要盡量用hibernate的hql，這樣可以減少類型轉換問題。要盡量用面向對象的思想來考慮問題！

div.compadmin2 {
??????????? top: 172px;
??????????? left: 316px;
??????????? position: absolute;
??????????? border-bottom: #939395 solid 0px;
??????????? border-left: #939395 solid 0px;
??????????? border-right: #939395 solid 0px;
??????????? border-top: #939395 solid 0px;
??????????? width: 541px;
??????????? height: 466px;
??????????? padding: 5px;
??????????? overflow: auto;

??????? }