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Hibernate

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  • One to Many Relation in Hibernate
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  • Criteria Queries : Equal (eq), Not Equal(ne), Less than (le), greater than (gt),greater than or equal(ge) and Ordering the results
  • Criteria Queries: And OR conditions
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  • prevent concurrent update in Hibernate,slate object updatation in Hibernate,version checking in Hibernate

    Struts


  • Model View Controller (MVC)
  • Model View Controller (MVC)
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  • Struts Tutorial - Struts Setup- First Struts Action class setup
  • Message Resources
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  • ForwardAction
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  • Struts Tutorial - Mutli-click prevention using struts tokens-Prevent Duplicate Submission
  • Logic Iterate Map and List

    JSP


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    Spring


  • Spring Tutorial
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  • Introduction to BeanFactory
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  • Spring IOC Setup Step by Step
  • Bean Lifecycle in Spring
  • ApplicationContext
  • MessageSources in Spring
  • Web Spring MVC framework
  • Developing Your First Spring Web Application
  • Developing Your Second Spring Web Application with Spring Form
  • Developing Your First Spring Web Application with Spring Validation Framework with Code Example
  • Spring integration with Hibernate
  • Resource Bundle

    Follow the bellow steps to setup Resource Bundle.

    Step 1. Add Message Resources location in struts-config.xml

    <!-- Message Resources --> <message-resources parameter="application_resource"/>

    Step 2. In the JSP add <html:errors/> in the failure.jsp

    <%@ taglib uri="/WEB-INF/struts-tiles.tld" prefix="tiles" %>
    <%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
    <%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
    <%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
    <html:form>
    <html:errors/> // this is for display message from resource bundle in JSP
    </html:form>

    Step 3. In the the Resource Bundle. application_resource.properties file //Here you can add localization.

    error.empname.required=Employee Name is Required

    Step 4. In the Action class

    public class EmpAction extends Action {
    public ActionForward execute(ActionMapping mapping,
    ActionForm form, HttpServletRequest request,
    HttpServletResponse response) throws Exception
    {
    //your logic
    ActionErrors errors = new ActionErrors(); // This is required for Error
    EmpForm empform =(EmpForm)form;
    String empName = empform.getFirstName()// User entered data you can get like this.
    if(empName == null){
    errors.add(ActionErrors.GLOBAL_ERROR, new ActionError("error.empname.required"));
    saveErrors(req, errors);
    return mapping.findForward("failure");
    } else {
    return mapping.findForward("success");
    }

    }

    Step 5. Add Action mapping and form entry into the stuts-confix.xml

    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN"
    "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
    <struts-config>
    <form-beans>
    <form-bean name="EmpForm" type="com.techfaq.form.EmpForm"> </form-bean>
    </form-beans>
    <action-mappings>
    <action path="/submitForm"
    type="com.techfaq.action.EmpAction"
    name="EmpForm"
    scope="request"
    validate="false"
    input="EmpForm.jsp">
    <forward name="success"
    path="success.jsp"/>
    <forward name="failure" path="failure.jsp" />
    </action>
    </action-mappings>
    </struts-config>

    Step 6. In the JSP page (EmpForm.jsp) - place into testApp folder

    <%@ taglib uri="/WEB-INF/struts-tiles.tld" prefix="tiles" %>
    <%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
    <%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
    <%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
    <html:form>
    <html:form action="/submitForm.do" method="post">
    <html:text property="firstName" size="20" maxlength="50"/>
    <html:submit >Save</html:submit>
    </html:form>

    Step 7. In the EmpForm

    package com.techfaq.form;
    public class EmpForm extends ActionForm {
    int empId;
    String firstName;
    public String getFirstName() {
    return firstName;
    }
    public void setFirstName(String firstName) {
    this.firstName = firstName;
    }
    public int getEmpId() {
    return empId;
    }
    public void setEmpId(int empId) {
    this.empId = empId;
    }
    }

    Now in the browser type http://localhost:8080/testApp/EmpForm.jsp

    Don't Enter Emp name in the text box and submit the "Save" BUTTON. Based on mapping.findForward("failure");
    it will return failure.jsp. In the browser you can see. In red color.

    Employee Name is Required

    The information you are posting should be related to java and ORACLE technology. Not political.