50分请高手指点一下
有一个题库管理系统,难度系数共分5级，1级容易、2级较容易、3级一般、4级较难、5级难,从中抽出一定的题,组成一套试题,还要生成试题头,生成的试卷能用WORD来进行保存,修改等,请高手指点一下,试卷的生成应该怎么做,最好能给一部分代码参考.
[解决办法]
java生成word,html文件并将内容保存至数据库
Posted on 2005-12-15 17:19 Kela 阅读(2715) 评论(3) 编辑 收藏 引用
在最近的一个项目中需要将一段字符类型的文本存为word，html并要将word的内容保存在数据库中，于是就有了如下的一个工具类，希望能对碰到这样需求的朋友提供点帮助。
匆匆忙忙的就copy上来了，没有做一些删减，有一些多余的东西，有兴趣的朋友可以自行略去。我的注释相对比较清楚，可以按照自己的需求进行组合。
在操作word的地方使用了jacob(jacob_1.9)，这个工具网上很容易找到，将jacob.dll放置系统Path中，直接放在system32下也可以，jacob.jar放置在classPath中。
代码如下：WordBridge.java
/**
* WordBridge.java
*/
package com.kela.util;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.sql.Connection;
import java.sql.PreparedStatement;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.jacob.activeX.ActiveXComponent;
import com.jacob.com.Dispatch;
import com.jacob.com.Variant;
import com.kela.db.PoolingDataSource;
/**
* 说明: 对word的操作 <p>
*
* @author kela.kf@gmail.com
*/
public class WordBridge {
Log log = LogFactory.getLog( "WordBridgt ");
private ActiveXComponent MsWordApp = null;
private Dispatch document = null;
/**
* 打开word
* @param makeVisible, true显示word, false不显示word
*/
public void openWord(boolean makeVisible) {
if (MsWordApp == null) {
MsWordApp = new ActiveXComponent( "Word.Application ");
}
Dispatch.put(MsWordApp, "Visible ", new Variant(makeVisible));
}
/**
* 创建新的文档
*
*/
public void createNewDocument() {
Dispatch documents = Dispatch.get(MsWordApp, "Documents ").toDispatch();
document = Dispatch.call(documents, "Add ").toDispatch();
}
/**
* 关闭文档
*/
public void closeDocument() {
// 0 = wdDoNotSaveChanges
// -1 = wdSaveChanges
// -2 = wdPromptToSaveChanges
Dispatch.call(document, "Close ", new Variant(0));
document = null;
}
/**
* 关闭word
*
*/
public void closeWord() {
Dispatch.call(MsWordApp, "Quit ");
MsWordApp = null;
document = null;
}
/**
* 插入文本
* @param textToInsert 文本内容
*/
public void insertText(String textToInsert) {
Dispatch selection = Dispatch.get(MsWordApp, "Selection ").toDispatch();
Dispatch.put(selection, "Text ", textToInsert);
}
/**
* 保存文件
* @param filename
*/
public void saveFileAs(String filename) {
Dispatch.call(document, "SaveAs ", filename);
}
/**
* 将word转换成html
* @param htmlFilePath
*/
public void wordToHtml(String htmlFilePath) {
Dispatch.invoke(document, "SaveAs ", Dispatch.Method, new Object[]{htmlFilePath,new Variant(8)}, new int[1]);
}
/**
* 保存word的同时，保存一个html
* @param text 需要保存的内容
* @param wordFilePath word的路径
* @param htmlFilePath html的路径
* @throws LTOAException
*/
public void wordAsDbOrToHtml(String text, String wordFilePath, String htmlFilePath) throws LTOAException {
try {
openWord(false);
createNewDocument();
insertText(text);
saveFileAs(wordFilePath);
wordToHtml(htmlFilePath);
} catch (Exception ex) {
log.error( "错误 - 对word的操作发生错误 ");
log.error( "原因 - " + ex.getMessage());
throw new LTOAException(LTOAException.ERR_UNKNOWN, "对word的操作发生错误( "
+ this.getClass().getName() + ".wordAsDbOrToHtml()) ", ex);
} finally {
closeDocument();
closeWord();
}
}
/**
* 将word保存至数据库
* @param wordFilePath
* @param RecordID
* @throws LTOAException
*/
public void wordAsDatabase(String wordFilePath, String RecordID) throws LTOAException {
Connection conn = null;
PreparedStatement pstmt = null;
PoolingDataSource pool = null;
File file = null;
String sql = " ";
try {
sql = " UPDATE Document_File SET FileBody = ? WHERE RecordID = ? ";
pool = new PoolingDataSource();
conn = pool.getConnection();
file = new File(wordFilePath);
InputStream is = new FileInputStream(file);
byte[] blobByte = new byte[is.available()];
is.read(blobByte);
is.close();
pstmt = conn.prepareStatement(sql);
pstmt.setBinaryStream(1,(new ByteArrayInputStream(blobByte)), blobByte.length);
pstmt.setString(2, RecordID);
pstmt.executeUpdate();
} catch (Exception ex) {
log.error( "错误 - 表 Document_File 更新数据发生意外错误 ");
log.error( "原因 - " + ex.getMessage());
throw new LTOAException(LTOAException.ERR_UNKNOWN,
"表Document_File插入数据发生意外错误( "
+ this.getClass().getName() + ".wordAsDatabase()) ", ex);
} finally {
pool.closePrepStmt(pstmt);
pool.closeConnection(conn);
}
}
/**
* 得到一个唯一的编号
* @return 编号
*/
public String getRecordID() {
String sRecordID = " ";
java.util.Date dt=new java.util.Date();
long lg=dt.getTime();
Long ld=new Long(lg);
sRecordID =ld.toString();
return sRecordID;
}
/**
* 得到保存word和html需要的路径
* @param systemType 模块类型 givInfo, sw, fw
* @param fileType 文件类型 doc, html
* @param recID 文件编号
* @return 路径
*/
public String getWordFilePath(String systemType, String fileType, String recID) {
String filePath = " ";
File file = new File(this.getClass().getResource( "/ ").getPath());
filePath = file.getPath().substring(0, file.getPath().length() - 15);
if(systemType.equalsIgnoreCase( "govInfo ")) {
if(fileType.equalsIgnoreCase( "doc "))
filePath = filePath + "/uploadFiles/govInfo/document/ " + recID + ".doc ";
else if(fileType.equalsIgnoreCase( "htm "))
filePath = filePath + "/HTML/govInfo/ " + recID + ".htm ";
} else if(systemType.equalsIgnoreCase( "sw ")){
if(fileType.equalsIgnoreCase( "doc "))
filePath = filePath + "/uploadFiles/sw/document/ " + recID + ".doc ";
else if(fileType.equalsIgnoreCase( "htm "))
filePath = filePath + "/HTML/sw/ " + recID + ".htm ";
} else if(systemType.equalsIgnoreCase( "fw ")) {
if(fileType.equalsIgnoreCase( "doc "))
filePath = filePath + "/uploadFiles/fw/document/ " + recID + ".doc ";
else if(fileType.equalsIgnoreCase( "htm "))
filePath = filePath + "/HTML/fw/ " + recID + ".htm ";
}
return filePath;
}
}
