package com.primefaces.sample;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Serializable;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
import javax.faces.bean.SessionScoped;
import javax.faces.context.FacesContext;
import org.apache.myfaces.custom.fileupload.UploadedFile;
@ManagedBean
@RequestScoped
public class FileUpload {
private UploadedFile upload;
private String uploadFileName;
private String dirPath;
private String imf;
public String getImf() {
return imf;
}
public void setImf(String imf) {
this.imf = imf;
}
public String getUploadFileName() {
return uploadFileName;
}
public void setUploadFileName(String uploadFileName) {
this.uploadFileName = uploadFileName;
}
public String getDirPath() {
return dirPath;
}
public void setDirPath(String dirPath) {
this.dirPath = dirPath;
}
public UploadedFile getUpload() {
return upload;
}
public void setUpload(UploadedFile upload) {
this.upload = upload;
}
public FileUpload() {}
public String uploadFile() {
File savedFileName;
dirPath = "D:\\testfile\\";
InputStream fileContent = null;
if (upload == null) {
return "success";
}
try {
fileContent = upload.getInputStream();
} catch (IOException e) {
e.printStackTrace();
}
uploadFileName = trimFilePath(upload.getName());
savedFileName = new File(dirPath + uploadFileName);
BufferedOutputStream bos = null;
try {
bos = new BufferedOutputStream(new FileOutputStream(savedFileName));
} catch (FileNotFoundException e) {
}
byte[] buffer = new byte[1024];
int len;
try {
while ((len = fileContent.read(buffer)) >= 0) {
bos.write(buffer, 0, len);
}
} catch (IOException e) {
}
try {
fileContent.close();
bos.close();
} catch (IOException e) {
}
// splitingData.insertData(dirPath, uploadFileName);
return "home";
}
public String trimFilePath(String fileName) {
return fileName.substring(fileName.lastIndexOf("/") + 1).substring(fileName.lastIndexOf("\\") + 1);
}
public List<UploadBean> getDisplayData() {
List<UploadBean> uploadBeans = new ArrayList<UploadBean>();
try {
FileInputStream fin = new FileInputStream(new File(dirPath+ uploadFileName));
BufferedReader br = new BufferedReader(new InputStreamReader(fin));
// Reading records from file
br.readLine();// out.println(column);
String row = null;
while ((row = br.readLine()) != null) {
// out.println(row);
String[] rowtemp = row.split(",");
UploadBean uploadBean = new UploadBean();
uploadBean.setHtno(rowtemp[0]);
uploadBean.setEcode(rowtemp[1]);
uploadBean.setSubcode(rowtemp[2]);
uploadBean.setImf(rowtemp[3]);
uploadBean.setHmfm(rowtemp[4]);
uploadBean.setCredits(rowtemp[5]);
uploadBean.setSubname(rowtemp[6]);
uploadBeans.add(uploadBean);
}
// st2.executeUpdate("DELETE FROM resultsdatas WHERE ROWID not in (SELECT MIN(ROWID) FROM resultsdatas GROUP BY HTNO,ECODE,SUBCODE,IMF,HMFM,CREDITS,SUBNAME)");
fin.close();
}// try
catch (FileNotFoundException e) {
System.out.println(e);
}
catch (Exception e) {
System.out.println(e);
}
return uploadBeans;
}
public String uploadAll() {
System.out.println("chek11-----------------"+dirPath);
try {
System.out.println("chek1-----------------"+dirPath);
FileInputStream fin = new FileInputStream(new File(dirPath + uploadFileName));
System.out.println("chek1-----------------1");
BufferedReader br = new BufferedReader(new InputStreamReader(fin));
Connection con = null;
// Statement st = null;
PreparedStatement pst = null;
String classname = "oracle.jdbc.driver.OracleDriver";
String driver = "jdbc:oracle:thin:@localhost";
String port = "1521";
String database = "m6db";
String user = "asap";
String pass = "asap";
Class.forName(classname).newInstance();
con = DriverManager.getConnection(driver + ":" + port + "/" + database, user, pass);
// st = con.createStatement();
String column = br.readLine();// out.println(column);
uploadFileName = uploadFileName.substring(0, uploadFileName.length() - 4);// to cut the extention ".txt" from the filename
// Reading column names from file
String columntemp[] = column.split(",");
for (int i = 0; i < columntemp.length; i++) {
System.out.println("columns---------->" + columntemp[i]);
}
// Preparing insert query
String insertquery="insert into "+uploadFileName+" values(";
for(int i=0;i<columntemp.length;i++) {
insertquery=insertquery+"?";
if((i+1)<columntemp.length)//to cut the last comma
insertquery=insertquery+",";
}
insertquery=insertquery+")";
pst=con.prepareStatement(insertquery);
// Reading records from file
String row = null;
while ((row = br.readLine()) != null) {
String[] rowtemp = row.split(",");
for(int i=0; i<rowtemp.length; i++) {
pst.setString(i+1,rowtemp[i]);
}
pst.executeUpdate();//inserting into database s=s+r;
}
// st.executeUpdate("DELETE FROM resultsdatas WHERE ROWID not in (SELECT MIN(ROWID) FROM resultsdatas GROUP BY HTNO,ECODE,SUBCODE,IMF,HMFM,CREDITS,SUBNAME)");
fin.close();
}// try
catch (FileNotFoundException e) {
System.out.println(e);
} catch (SQLException e) {
System.out.println(e);
} catch (Exception e) {
System.out.println(e);
}
return "login";
}
public String single() {
System.out.println("-----------**---d---");
/*FacesContext Ctx = FacesContext.getCurrentInstance();
Map Params = Ctx.getExternalContext().getRequestParameterMap();
String temp = (String) Params.get("imf");
System.out.println("-----------**---d---"+temp);*/
return "login";
}
}
<html xmlns="http://www.w3c.org/1999/xhtml"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui">
<h:head>
<link type="text/css" rel="stylesheet" href="skin.css" />
</h:head>
<h:body>
<h:form id="testForm">
<p:fieldset legend="data">
<p:dataTable id="fileData" var="dataList" value="#{fileUpload.displayData}">
<p:column headerText="Htno">
<h:outputText value="#{dataList.htno}" />
</p:column>
<p:column headerText="Ecode">
<h:outputText value="#{dataList.ecode}" />
</p:column>
<p:column headerText="Subcode">
<h:outputText value="#{dataList.subcode}" />
</p:column>
<p:column headerText="Imf">
<h:outputText value="#{dataList.imf}" />
</p:column>
<p:column headerText="Action">
<p:commandButton image="Upload" ajax="false" style="margin-right:20px;" action="#{fileUpload.single}" ></p:commandButton>
</p:column>
</p:dataTable>
</p:fieldset>
</h:form>
<h:form id="UploadAll">
<h:inputHidden value="#{fileUpload.uploadFileName}" id="uploadFileName" />
<h:inputHidden value="#{fileUpload.dirPath}" id="dirPath" />
<h:commandButton type="submit" value="Upload All" action="#{fileUpload.uploadAll}"></h:commandButton>
</h:form>
</h:body>
</html>
这里我展示了我的fileUpload.java和home.xhtml文件，在xhtml文件中我有两个按钮。 “全部上传”按钮完全可以从fileUpload.java文件中调用uploadAll方法，但“上传”按钮无法调用单个方法格式fileUpload.java（同一文件）。如果我单击“上传”按钮，它不会调用单一方法，即使它刷新我的home.xhtml页面，并给出一个警告，如下所示。
警告：找到无效标记：查找attr名称或'/＆gt;'时意外输入第9行。环境：'“name =”UploadAll：j_idt16“val'。 java.io.FileNotFoundException：nullnull（系统找不到指定的文件）
你能给出解决方案吗？ 我可以把上面的按钮调用动作类方法吗？