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最新评论
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fengyuxing168:
IBelyService bs = IBelyService. ...
为 Android 添加 Java 层服务也就是添加自定义的aidl服务到serviceManager 通过ServiceManager.getService取 -
dengzhangtao:
"由于ActivityManagerService是 ...
binder理解 -
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ActivityManagerService:startHom ...
Android的Launcher成为系统中第一个启动的,也是唯一的 -
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使用SELECT DISTINCT alias FROM Po ...
hibernate 一对多表查询时fetchMode.join 生成left outer join 出来数据重复问题 -
dlheart:
没看懂你什么意思啊,我遇到的问题是一对多,设了fetch = ...
hibernate 一对多表查询时fetchMode.join 生成left outer join 出来数据重复问题
1.类文件makexls
package com;
import java.io.File;
import java.sql.*;
import java.util.Calendar;
import com.custom.util.ConnectionCustom;
import jxl.Workbook;
import jxl.write.*;
// Referenced classes of package com:
// connection
public class makexls
{
public makexls()
{
DBconn = new ConnectionCustom();
conn = DBconn.getConnection();
stmt = null;
stmt1 = null;
rs = null;
rs1 = null;
cu = 0;
path1 = "";
bigstr = "";
}
public static String replaceString(String s, String s1, String s2)
{
byte byte0 = -1;
boolean flag = false;
int j = s1.length();
StringBuffer stringbuffer = new StringBuffer();
for(int i = s.indexOf(s1); i != -1; i = s.indexOf(s1))
{
stringbuffer.append(s.substring(0, i));
stringbuffer.append(s2);
s = s.substring(i + j);
}
stringbuffer.append(s);
return stringbuffer.toString();
}
public String nowServerTime()
{
Calendar calendar = Calendar.getInstance();
String s = String.valueOf(calendar.get(1));
String s1 = String.valueOf(calendar.get(2) + 1);
String s2 = String.valueOf(calendar.get(5) + 1);
String s3 = String.valueOf(calendar.get(10));
String s4 = String.valueOf(calendar.get(12));
String s5 = String.valueOf(calendar.get(13));
s1 = Integer.parseInt(s1) > 9 ? s1 : "0" + s1;
s2 = Integer.parseInt(s2) > 9 ? s2 : "0" + s2;
String s6 = String.valueOf((int)(Math.random() * 100000D));
String s7 = "_" + s6 + "_" + s + s1 + s2 + s3 + s4 + s5;
return s7;
}
public String makexls(String s, String s1, String s2, String as[])
{
try
{
String s3 = s;
File file = new File(s3);
String as1[] = file.list();
for(int i = 0; i < as1.length; i++)
if(as1[i].length() >= 21)
{
String s6 = as1[i].substring(13, 21);
Calendar calendar = Calendar.getInstance();
int j = calendar.get(5);
calendar.set(5, j - 3);
int k = calendar.get(1);
int l = calendar.get(2) + 1;
int j1 = calendar.get(5);
String s7 = String.valueOf(k) + (l > 9 ? String.valueOf(l) : "0" + String.valueOf(l)) + (j1 > 9 ? String.valueOf(j1) : "0" + String.valueOf(j1));
if(s6.compareTo(s7) <= 0)
{
File file1 = new File(s3 + "/" + as1[i]);
file1.delete();
}
}
}
catch(Exception exception) { }
String s4 = "";
try
{
Workbook workbook = Workbook.getWorkbook(new File(s1));
path1 = s + "result" + nowServerTime() + ".xls";
WritableWorkbook writableworkbook = Workbook.createWorkbook(new File(path1), workbook);
WritableSheet writablesheet = writableworkbook.getSheet(0);
jxl.write.WritableCell writablecell = writablesheet.getWritableCell(0, 0);
ResultSetMetaData resultsetmetadata = null;
stmt = conn.createStatement();
stmt1 = conn.createStatement();
try
{
//System.out.println("s2==sql==="+s2);
rs = stmt.executeQuery(s2);
if(rs.next())
resultsetmetadata = rs.getMetaData();
//System.out.println("resultsetmetadata========="+resultsetmetadata.getColumnCount());//得到结果集(rs)的结构信息,比如字段数、字段名等。
}
catch(Exception exception2)
{
rs = null;
}
boolean flag = false;
if(rs != null)
{
for(int i1 =1;i1 <= resultsetmetadata.getColumnCount(); i1++)
{
Label label = new Label(i1 - 1, 0, as[i1 - 1]);
writablesheet.addCell(label);
//rs.beforeFirst();
cu = 0;
Label label1;
int j=0;
rs1 = stmt1.executeQuery(s2);
for(; rs1.next(); writablesheet.addCell(label1))
{
//System.out.println(j);
cu = cu + 1;
String s5 = rs1.getString(resultsetmetadata.getColumnName(i1)) == null ? "" : rs1.getString(resultsetmetadata.getColumnName(i1));
s5=replaceString(s5,""","\"");
s5=replaceString(s5,"´","\'");
s5=replaceString(s5,""","\"");
s5=replaceString(s5,"'","\'");
label1 = new Label(i1 - 1, cu, s5);
j++;
}
}
}
rs1.close();
rs.close();
writableworkbook.write();
writableworkbook.close();
workbook.close();
}
catch(Exception exception1)
{
exception1.printStackTrace();
}
return path1;
}
public String makexlsWidthConn(String s, String s1, String s2, String as[],Connection conn1)
{
try
{
String s3 = s;
File file = new File(s3);
String as1[] = file.list();
for(int i = 0; i < as1.length; i++)
if(as1[i].length() >= 21)
{
String s6 = as1[i].substring(13, 21);
Calendar calendar = Calendar.getInstance();
int j = calendar.get(5);
calendar.set(5, j - 3);
int k = calendar.get(1);
int l = calendar.get(2) + 1;
int j1 = calendar.get(5);
String s7 = String.valueOf(k) + (l > 9 ? String.valueOf(l) : "0" + String.valueOf(l)) + (j1 > 9 ? String.valueOf(j1) : "0" + String.valueOf(j1));
if(s6.compareTo(s7) <= 0)
{
File file1 = new File(s3 + "/" + as1[i]);
file1.delete();
}
}
}
catch(Exception exception) { }
String s4 = "";
try
{
Workbook workbook = Workbook.getWorkbook(new File(s1));
path1 = s + "result" + nowServerTime() + ".xls";
WritableWorkbook writableworkbook = Workbook.createWorkbook(new File(path1), workbook);
WritableSheet writablesheet = writableworkbook.getSheet(0);
jxl.write.WritableCell writablecell = writablesheet.getWritableCell(0, 0);
ResultSetMetaData resultsetmetadata = null;
stmt = conn1.createStatement();
stmt1 = conn1.createStatement();
try
{
//System.out.println("s2==sql==="+s2);
rs = stmt.executeQuery(s2);
if(rs.next())
resultsetmetadata = rs.getMetaData();
//System.out.println("resultsetmetadata========="+resultsetmetadata.getColumnCount());//得到结果集(rs)的结构信息,比如字段数、字段名等。
}
catch(Exception exception2)
{
rs = null;
}
boolean flag = false;
if(rs != null)
{
for(int i1 =1;i1 <= resultsetmetadata.getColumnCount(); i1++)
{
Label label = new Label(i1 - 1, 0, as[i1 - 1]);
writablesheet.addCell(label);
//rs.beforeFirst();
cu = 0;
Label label1;
int j=0;
rs1 = stmt1.executeQuery(s2);
for(; rs1.next(); writablesheet.addCell(label1))
{
//System.out.println(j);
cu = cu + 1;
String s5 = rs1.getString(resultsetmetadata.getColumnName(i1)) == null ? "" : rs1.getString(resultsetmetadata.getColumnName(i1));
s5=replaceString(s5,""","\"");
s5=replaceString(s5,"´","\'");
s5=replaceString(s5,""","\"");
s5=replaceString(s5,"'","\'");
label1 = new Label(i1 - 1, cu, s5);
j++;
}
}
}
rs1.close();
rs.close();
writableworkbook.write();
writableworkbook.close();
workbook.close();
}
catch(Exception exception1)
{
exception1.printStackTrace();
}
return path1;
}
private ConnectionCustom DBconn;
private Connection conn;
Statement stmt;
Statement stmt1;
ResultSet rs;
ResultSet rs1;
int cu;
String path1;
String bigstr;
}
2.调用
String[] listTitle=new String[]{"産品編號","産品版本","客戶産品編號","倉點編號","入倉時間","入倉單號","單重 ","單價","本期結存"," ","0---30天"," ","","31---60天 "," ","","61---90天 "," ","","61---90天"," ","","121---150天 "," ","","151---180天 "," ","","181---210天 "," ","","211---240天"," ",""," 241---270天"," ","","271---300天 "," ","","301---330天 "," ","","331---360天 "," ","","361天以上 "," ","總結遇","總重","總價"};
String modefile="2005031017198.xls";//一个空excel文件
String path3=request.getRealPath("/report/template/");//空excel文件路径
path3=path3+"/";
String mopa=request.getRealPath("/report/report/");//生成excel保存路径
mopa=mopa+"/";
String mfile=path3+modefile;
// pathtemp=makexls(mopa,mfile,sql,listTitle,conn);
pathtemp=makexls(mopa,mfile,sql,listTitle);
if (!"".equals(pathtemp)){
int len=pathtemp.length();
int j=pathtemp.indexOf("result");
pathtemp=pathtemp.substring(j,len);
}
package com;
import java.io.File;
import java.sql.*;
import java.util.Calendar;
import com.custom.util.ConnectionCustom;
import jxl.Workbook;
import jxl.write.*;
// Referenced classes of package com:
// connection
public class makexls
{
public makexls()
{
DBconn = new ConnectionCustom();
conn = DBconn.getConnection();
stmt = null;
stmt1 = null;
rs = null;
rs1 = null;
cu = 0;
path1 = "";
bigstr = "";
}
public static String replaceString(String s, String s1, String s2)
{
byte byte0 = -1;
boolean flag = false;
int j = s1.length();
StringBuffer stringbuffer = new StringBuffer();
for(int i = s.indexOf(s1); i != -1; i = s.indexOf(s1))
{
stringbuffer.append(s.substring(0, i));
stringbuffer.append(s2);
s = s.substring(i + j);
}
stringbuffer.append(s);
return stringbuffer.toString();
}
public String nowServerTime()
{
Calendar calendar = Calendar.getInstance();
String s = String.valueOf(calendar.get(1));
String s1 = String.valueOf(calendar.get(2) + 1);
String s2 = String.valueOf(calendar.get(5) + 1);
String s3 = String.valueOf(calendar.get(10));
String s4 = String.valueOf(calendar.get(12));
String s5 = String.valueOf(calendar.get(13));
s1 = Integer.parseInt(s1) > 9 ? s1 : "0" + s1;
s2 = Integer.parseInt(s2) > 9 ? s2 : "0" + s2;
String s6 = String.valueOf((int)(Math.random() * 100000D));
String s7 = "_" + s6 + "_" + s + s1 + s2 + s3 + s4 + s5;
return s7;
}
public String makexls(String s, String s1, String s2, String as[])
{
try
{
String s3 = s;
File file = new File(s3);
String as1[] = file.list();
for(int i = 0; i < as1.length; i++)
if(as1[i].length() >= 21)
{
String s6 = as1[i].substring(13, 21);
Calendar calendar = Calendar.getInstance();
int j = calendar.get(5);
calendar.set(5, j - 3);
int k = calendar.get(1);
int l = calendar.get(2) + 1;
int j1 = calendar.get(5);
String s7 = String.valueOf(k) + (l > 9 ? String.valueOf(l) : "0" + String.valueOf(l)) + (j1 > 9 ? String.valueOf(j1) : "0" + String.valueOf(j1));
if(s6.compareTo(s7) <= 0)
{
File file1 = new File(s3 + "/" + as1[i]);
file1.delete();
}
}
}
catch(Exception exception) { }
String s4 = "";
try
{
Workbook workbook = Workbook.getWorkbook(new File(s1));
path1 = s + "result" + nowServerTime() + ".xls";
WritableWorkbook writableworkbook = Workbook.createWorkbook(new File(path1), workbook);
WritableSheet writablesheet = writableworkbook.getSheet(0);
jxl.write.WritableCell writablecell = writablesheet.getWritableCell(0, 0);
ResultSetMetaData resultsetmetadata = null;
stmt = conn.createStatement();
stmt1 = conn.createStatement();
try
{
//System.out.println("s2==sql==="+s2);
rs = stmt.executeQuery(s2);
if(rs.next())
resultsetmetadata = rs.getMetaData();
//System.out.println("resultsetmetadata========="+resultsetmetadata.getColumnCount());//得到结果集(rs)的结构信息,比如字段数、字段名等。
}
catch(Exception exception2)
{
rs = null;
}
boolean flag = false;
if(rs != null)
{
for(int i1 =1;i1 <= resultsetmetadata.getColumnCount(); i1++)
{
Label label = new Label(i1 - 1, 0, as[i1 - 1]);
writablesheet.addCell(label);
//rs.beforeFirst();
cu = 0;
Label label1;
int j=0;
rs1 = stmt1.executeQuery(s2);
for(; rs1.next(); writablesheet.addCell(label1))
{
//System.out.println(j);
cu = cu + 1;
String s5 = rs1.getString(resultsetmetadata.getColumnName(i1)) == null ? "" : rs1.getString(resultsetmetadata.getColumnName(i1));
s5=replaceString(s5,""","\"");
s5=replaceString(s5,"´","\'");
s5=replaceString(s5,""","\"");
s5=replaceString(s5,"'","\'");
label1 = new Label(i1 - 1, cu, s5);
j++;
}
}
}
rs1.close();
rs.close();
writableworkbook.write();
writableworkbook.close();
workbook.close();
}
catch(Exception exception1)
{
exception1.printStackTrace();
}
return path1;
}
public String makexlsWidthConn(String s, String s1, String s2, String as[],Connection conn1)
{
try
{
String s3 = s;
File file = new File(s3);
String as1[] = file.list();
for(int i = 0; i < as1.length; i++)
if(as1[i].length() >= 21)
{
String s6 = as1[i].substring(13, 21);
Calendar calendar = Calendar.getInstance();
int j = calendar.get(5);
calendar.set(5, j - 3);
int k = calendar.get(1);
int l = calendar.get(2) + 1;
int j1 = calendar.get(5);
String s7 = String.valueOf(k) + (l > 9 ? String.valueOf(l) : "0" + String.valueOf(l)) + (j1 > 9 ? String.valueOf(j1) : "0" + String.valueOf(j1));
if(s6.compareTo(s7) <= 0)
{
File file1 = new File(s3 + "/" + as1[i]);
file1.delete();
}
}
}
catch(Exception exception) { }
String s4 = "";
try
{
Workbook workbook = Workbook.getWorkbook(new File(s1));
path1 = s + "result" + nowServerTime() + ".xls";
WritableWorkbook writableworkbook = Workbook.createWorkbook(new File(path1), workbook);
WritableSheet writablesheet = writableworkbook.getSheet(0);
jxl.write.WritableCell writablecell = writablesheet.getWritableCell(0, 0);
ResultSetMetaData resultsetmetadata = null;
stmt = conn1.createStatement();
stmt1 = conn1.createStatement();
try
{
//System.out.println("s2==sql==="+s2);
rs = stmt.executeQuery(s2);
if(rs.next())
resultsetmetadata = rs.getMetaData();
//System.out.println("resultsetmetadata========="+resultsetmetadata.getColumnCount());//得到结果集(rs)的结构信息,比如字段数、字段名等。
}
catch(Exception exception2)
{
rs = null;
}
boolean flag = false;
if(rs != null)
{
for(int i1 =1;i1 <= resultsetmetadata.getColumnCount(); i1++)
{
Label label = new Label(i1 - 1, 0, as[i1 - 1]);
writablesheet.addCell(label);
//rs.beforeFirst();
cu = 0;
Label label1;
int j=0;
rs1 = stmt1.executeQuery(s2);
for(; rs1.next(); writablesheet.addCell(label1))
{
//System.out.println(j);
cu = cu + 1;
String s5 = rs1.getString(resultsetmetadata.getColumnName(i1)) == null ? "" : rs1.getString(resultsetmetadata.getColumnName(i1));
s5=replaceString(s5,""","\"");
s5=replaceString(s5,"´","\'");
s5=replaceString(s5,""","\"");
s5=replaceString(s5,"'","\'");
label1 = new Label(i1 - 1, cu, s5);
j++;
}
}
}
rs1.close();
rs.close();
writableworkbook.write();
writableworkbook.close();
workbook.close();
}
catch(Exception exception1)
{
exception1.printStackTrace();
}
return path1;
}
private ConnectionCustom DBconn;
private Connection conn;
Statement stmt;
Statement stmt1;
ResultSet rs;
ResultSet rs1;
int cu;
String path1;
String bigstr;
}
2.调用
String[] listTitle=new String[]{"産品編號","産品版本","客戶産品編號","倉點編號","入倉時間","入倉單號","單重 ","單價","本期結存"," ","0---30天"," ","","31---60天 "," ","","61---90天 "," ","","61---90天"," ","","121---150天 "," ","","151---180天 "," ","","181---210天 "," ","","211---240天"," ",""," 241---270天"," ","","271---300天 "," ","","301---330天 "," ","","331---360天 "," ","","361天以上 "," ","總結遇","總重","總價"};
String modefile="2005031017198.xls";//一个空excel文件
String path3=request.getRealPath("/report/template/");//空excel文件路径
path3=path3+"/";
String mopa=request.getRealPath("/report/report/");//生成excel保存路径
mopa=mopa+"/";
String mfile=path3+modefile;
// pathtemp=makexls(mopa,mfile,sql,listTitle,conn);
pathtemp=makexls(mopa,mfile,sql,listTitle);
if (!"".equals(pathtemp)){
int len=pathtemp.length();
int j=pathtemp.indexOf("result");
pathtemp=pathtemp.substring(j,len);
}
发表评论
-
关于JAVA多线程同步
2011-09-29 10:39 826因为需要,最近关注了一下JAVA多线程同步问题。JAVA多线程 ... -
java多线程之 wait(),notify(),notifyAll()
2011-05-27 17:25 1374wait(),notify(),notifyAll()不属 ... -
JAVA反射机制的学习
2010-11-15 22:54 897JAVA反射机制的学习2009-07-06 11:33JAVA ... -
Java线程:线程的交互
2010-07-21 09:26 942Java线程:线程的交互 ---------------- ... -
JSP数据导出到EXCEL超简便方法
2010-05-24 09:31 1672JSP数据导出到EXCEL简便方法(2008-11-19 15 ... -
iText经验总结
2010-05-04 21:49 2439iText经验总结 因为前些 ... -
org.apache.commons.lang.StringUtil 常用方法使用例子
2010-03-26 11:00 10731.空字符串检查使用函数: StringUtils.isBla ... -
java 多线程 实现
2010-03-10 15:20 990多线程是这样一种机制 ... -
java反射机制
2010-01-22 10:19 1010Reflection 是Java被视为动态(或准动态)语 ... -
iText 跨行and背景图片
2009-08-25 20:33 2672最近用iText生成pdf文件供下载和当做附件email, 第 ... -
利用iText写PDF心得
2009-08-11 09:56 1491利用iText写PDF心得 & ... -
使用itext生成pdf
2009-08-10 11:20 1448一、前言 在企业的信息系统中,报表处理一直占比较重要的作 ... -
jsp分页
2009-03-06 10:43 871public class PageHelper { //to ... -
JSP环境配置使用fckeditor
2009-02-18 09:59 1237JSP环境配置使用fckeditor 录入时间 2008-12 ... -
使用J2SE API读取Properties文件的六种方法
2008-10-07 19:27 798使用J2SE API读取Properties文件的六种方法 ... -
native2ascii转码
2008-10-07 17:22 14221,原理 Property 文件中 ...
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`java生成excel表格.zip`和`java生成excel文件表格`可能是包含其他示例代码或已生成的Excel文件。你可以解压这些文件,查看和运行其中的代码,以了解更多的用法和功能,例如如何读取Excel数据,如何设置单元格格式,...
利用Java生成Excel文件是一项常见的需求,特别是在数据处理和报表生成的场景中。Apache POI是一个强大的库,专门用于处理Microsoft Office格式的文件,包括Excel。本文将详细介绍如何使用Java和POI库生成Excel文件,...
总结,Java生成Excel报表的过程涉及到文件I/O操作、使用第三方库(如JExcelApi)、创建和操作工作簿和工作表对象、设置单元格内容和样式等技术。通过熟练掌握这些知识点,你就能高效地在Java程序中生成各种复杂的...
在IT行业中,生成Excel报表是一项常见的任务,尤其是在数据处理、数据分析和报告生成的场景下。Apache POI是一个广泛使用的开源库,它允许开发者使用Java语言来读取、写入和修改Microsoft Office格式的文件,包括...
在`StreamDemo_13.java`这个示例文件中,可能就包含了上述部分或全部步骤,演示了如何使用Java生成Excel文件的具体实现。配合`Java.jpg`这个图片文件,可能是为了说明如何在Excel中插入图片。 总之,通过Apache POI...
Java生成Excel文档是一种常见的数据导出需求,尤其在企业级应用和数据分析中广泛使用。Apache POI 是一个流行的开源库,专门用于读取、写入和修改Microsoft Office格式的文件,包括Excel(.xlsx和.xls)文档。在这个...
Java生成Excel是编程中常见的需求,特别是在数据处理和报表生成的场景下。Java与Excel的交互通常通过第三方库实现,例如Apache POI、JExcelAPI等。本示例中提到的"java 生成 excel 包含jar包",指的是一个包含相关...
本篇文章将详细探讨Java生成Excel的不同方法以及如何处理jar包和文件下载。 首先,让我们了解一下Java生成Excel的几种常见库: 1. **JXL库**:压缩包中的`jxl.jar`文件就是JXL库,这是一个广泛使用的Java库,用于...
本示例涉及的“java生成excel工具类和demo”是关于如何在Java环境中使用Apache POI库来创建和导出Excel文件的一个实践案例。Apache POI是一个流行的开源库,它允许开发者读写Microsoft Office格式的文件,包括Excel...
这个名为"java生成excel.rar"的压缩包文件显然包含了完成这一任务的相关代码和资源。下面将详细解释如何利用Java生成Excel,以及可能涉及的关键知识点。 首先,`ExportExcel.java`很可能是一个用于创建Excel文件的...
这篇博客文章“java 生成excel (POI)”显然是探讨如何使用Apache POI来创建Excel文件。下面将详细阐述Apache POI库的核心概念、使用方法以及生成Excel的基本步骤。 Apache POI是Apache软件基金会的一个开源项目,它...
对于“java生成Excel数据表”这个主题,我们将主要关注如何使用Apache POI来创建和填充Excel工作簿。 首先,你需要在你的项目中引入Apache POI库。如果你使用的是Maven,可以在pom.xml文件中添加以下依赖: ```xml...
在Java编程环境中,生成Excel报表是一项常见的任务,特别是在数据分析、数据导出或报表制作的场景中...以上就是使用Java生成基于模板的Excel报表的基本步骤和知识点,实际开发中可能还需要根据业务需求进行调整和优化。