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我嘗試從數據庫中顯示jsf數據數據中的數據，並在同一行中顯示數據，並顯示編輯鏈接。現在當用戶點擊編輯按鈕時，它應該是outputText的inputText。在這裏我已經完成了編碼，但我不能改變文本框，你可以幫我嗎？提前致謝。當點擊Edit按鈕時，將數據表格outputText更改爲inputText
ShowData.xhtml
<h:dataTable value="#{customerdata.customerList}" var="c"
styleClass="order-table" binding="#{customerdata.dataTable}"
headerClass="order-table-header" border="1" width="100%"
rowClasses="order-table-odd-row,order-table-even-row" rows="3">
<h:column>
<h:selectBooleanCheckbox></h:selectBooleanCheckbox>
</h:column>
<h:column>
<f:facet name="heder">User ID</f:facet>
<h:inputText value="#{c.cust_id}" size="10" rendered="#{c.editable}"/>
<h:outputLabel value="#{c.cust_id}" rendered="#{not c.editable}" />
</h:column>
<h:column>
<f:facet name="heder">User Name</f:facet>
<h:inputText value="#{c.cust_name}" size="10" rendered="#{c.editable}"/>
<h:outputLabel value="#{c.cust_name}" rendered="#{not c.editable}" />
</h:column>
<h:column>
<h:commandLink value="Update" rendered="#{c.editable}" action="#{customerdata.editAction(c)}" />
<h:commandLink value="Edit" action="#{customerdata.editAction(c)}" rendered="#{not c.editable}"/>
</h:column>
<h:column>
<h:commandLink value="Delete" action="#{customerdata.deleteAction(c)}" />
</h:column>
<!-- Footer Setting -->
<f:facet name="footer">
<h:panelGroup>
<h:commandButton value="prev" action="#{customerdata.pagePrevious}"
disabled="#{customerdata.dataTable.first == 0}" />
<h:commandButton value="next" action="#{customerdata.pageNext}"
disabled="#{customerdata.dataTable.first + customerdata.dataTable.rows
>= customerdata.dataTable.rowCount}" />
</h:panelGroup>
</f:facet>
</h:dataTable>
CustomerData.java
package model;
@ManagedBean(name="customerdata")
public class CustomerData implements Serializable {
private static final long serialVersionUID = 1L;
Connection con;
Statement smt;
HtmlDataTable dataTable;
//Customer cust=new Customer();
public List<Customer> getcustomerList() throws SQLException{
//System.out.println("in getcustomerlist");
List<Customer> list= new ArrayList<Customer>();
try{
Class.forName("com.mysql.jdbc.Driver");
con = DriverManager.getConnection("jdbc:mysql://localhost:3306/openid","root","root");
smt = con.createStatement();
String query="select * from jsftable";
ResultSet rs= smt.executeQuery(query);
while(rs.next()){
Customer cust = new Customer();
cust.setCust_id(rs.getInt("cust_id"));
cust.setCust_name(rs.getString("cust_name"));
cust.setHas_attachment(rs.getBoolean("has_attachment"));
System.out.println("in cusotomer data"+cust.isEditable());
//store all data into a List
list.add(cust);
}
}
catch(Exception e){
e.printStackTrace();
}
return list;
}
public void pageFirst() {
dataTable.setFirst(0);
}
public void pagePrevious() {
dataTable.setFirst(dataTable.getFirst() - dataTable.getRows());
System.out.println("Prevoius"+dataTable.getFirst());
}
public void pageNext() {
dataTable.setFirst(dataTable.getFirst() + dataTable.getRows());
System.out.println("Next"+dataTable.getFirst());
}
public void pageLast() {
int count = dataTable.getRowCount();
int rows = dataTable.getRows();
dataTable.setFirst(count - ((count % rows != 0) ? count % rows : rows));
}
public HtmlDataTable getdataTable() {
return dataTable;
}
public void setdataTable(HtmlDataTable dataTable) {
this.dataTable = dataTable;
}
public void showRow(){
System.out.println(dataTable.getRows());
}
public String deleteAction(Customer customer) throws SQLException{
//list.remove(customer);
//System.out.println(customer.cust_id);
try{
Class.forName("com.mysql.jdbc.Driver");
con = DriverManager.getConnection("jdbc:mysql://localhost:3306/openid","root","root");
smt = con.createStatement();
String query="delete from jsftable where cust_id="+customer.cust_id+"";
//ResultSet rs= smt.executeQuery(query);
smt.executeUpdate(query);
}
catch(Exception e){
e.printStackTrace();
}
return null;
}
public String editAction(Customer customer) {
//list.remove(customer);
System.out.println(customer.cust_id);
customer.setEditable(true);
return null;
}
}
Customer.java
public class Customer {
int cust_id;
String cust_name;
boolean has_attachment;
boolean editable;
String edit_value;
public String getEdit_value() {
System.out.println("in getter");
return edit_value;
}
public void setEdit_value(String editvalue) {
this.edit_value = editvalue;
}
public boolean isHas_attachment() {
System.out.println("in getter of has_attach");
return has_attachment;
}
public void setHas_attachment(boolean hasAttachment) {
has_attachment = hasAttachment;
}
public int getCust_id() {
System.out.println("in getter of cust_id");
return cust_id;
}
public void setCust_id(int custId) {
cust_id = custId;
}
public String getCust_name() {
return cust_name;
}
public void setCust_name(String custName) {
cust_name = custName;
}
public boolean isEditable() {
//System.out.println("in isEditable"+editable);
return editable;
}
public void setEditable(boolean editable) {
this.editable = editable;
//System.out.println("in set editable"+editable);
}
}