Springmvc-2 (rest-style additions and deletions)-code (1)

Departmentdao.java:

Package Com.springmvc.Dao;

Import java.util.Collection;
Import Java.util.HashMap;
Import Java.util.Map;

Import com.springmvc.pojo.Department;

public class Departmentdao {
private static map<integer,department> depts;
static {
Depts=new hashmap<integer,department> ();
Depts.put (1, New Department (1, "saledepartment"));
Depts.put (2, New Department (2, "HR"));
}
public static collection<department>getalldepts () {
return Depts.values ();
}
public static Department Getdeptbyid (Integer ID) {
return Depts.get (ID);
}

}

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Employeedao.java:

Package Com.springmvc.Dao;

Import java.util.Collection;
Import Java.util.HashMap;
Import Java.util.Map;

Import Com.springmvc.pojo.Employee;

public class EmployeeDAO {
private static Map<integer, employee> Emps;
static {
Emps = new Hashmap<integer, employee> ();
Emps.put (101, New Employee (101, "Wantao", "[email protected]", 0, Departmentdao.getdeptbyid (2));
Emps.put (102, New Employee (102, "Wanxiaofei", "[email protected]", 1, Departmentdao.getdeptbyid (1));
Emps.put (103, New Employee (103, "Wanchao", "[email protected]", 0, Departmentdao.getdeptbyid (1));
Emps.put (104, New Employee (104, "Gaohan", "[email protected]", 0, Departmentdao.getdeptbyid (1));
Emps.put, New Employee ("Lihan", "[email protected]", 0, Departmentdao.getdeptbyid (1));

}

Get information about all employees, gather through the map
Traversing map,<%%> JSTL foreach in success.jsp
Map conversion to Collection
public static collection<employee> GetAllEmployees () {
return Emps.values ();
}

public static Employee Getempbyid (Integer ID) {
return Emps.get (ID);

}

private static Integer key = 106;

public static void Save (Employee emp) {
Emp.setid (key);
Emp.setdept (Departmentdao.getdeptbyid (Emp.getdept (). Getdeptid ()));
Emps.put (key++, EMP);

}

public static void Delete (Integer id) {
Emps.remove (ID);
}
public static void Update (Integer id,employee EMP) {
Emp.setdept (Departmentdao.getdeptbyid (Emp.getdept (). Getdeptid ()));
Emps.put (ID, EMP);
}

}

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Employeehandler.java:

Package Com.springmvc.handler;

Import Java.util.HashMap;
Import Java.util.Map;

Import Org.springframework.stereotype.Controller;
Import Org.springframework.web.bind.annotation.ModelAttribute;
Import org.springframework.web.bind.annotation.PathVariable;
Import org.springframework.web.bind.annotation.RequestMapping;
Import Org.springframework.web.bind.annotation.RequestMethod;

Import Com.springmvc.Dao.DepartmentDao;
Import Com.springmvc.Dao.EmployeeDao;
Import Com.springmvc.pojo.Employee;

@Controller
public class Employeehandler {
Private final String SUCCESS = "SUCCESS";
Private final String add = "Add";

@RequestMapping (value = "/showemp", method = Requestmethod.get)
Public String showemp (map<string, object> Map) {
Map.put ("Emps", Employeedao.getallemployees ());

return SUCCESS;
}

Addemp method, complete the user input function jump: 1. Add users 2. change user
@RequestMapping (value = "/addemp/{id}", method = Requestmethod.get)
Public String addemp (@PathVariable ("id") Integer ID, map<string, object> Map) {
Get all the Sex
Get all the Department information
Map<integer, object> genders = new Hashmap<integer, object> ();
Employee Employee = new Employee ();
Genders.put (0, "MALE");
Genders.put (1, "FEMALE");
Map.put ("genders", genders);
if (id! = 0) {
Employee = Employeedao.getempbyid (ID);
}

Map.put ("Depts", departmentdao.getalldepts ());
Map.put ("command", employee);

return ADD;
}

@RequestMapping (value = "/emp", method = Requestmethod.post)
Public String Add (Employee emp) {
Employeedao.save (EMP);
return "Redirect:/showemp";
}

@RequestMapping (value = "/emp/{id}", method = Requestmethod.delete)
Public String Delete (@PathVariable ("id") Integer ID) {
Employeedao.delete (ID);
return "Redirect:/showemp";
}
@ModelAttribute
public void Sex (Integer id,map<string,object> Map) {

Employee Employee=employeedao.getempbyid (ID);
Map.put ("Employee", employee);


}
@RequestMapping (value= "/emp", Method=requestmethod.put)
Public String Update (Employee EMP) {
Employeedao.update (Emp.getid (), EMP);
return "Redirect:/showemp";
}

}

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Department.java:

Package Com.springmvc.pojo;

public class Department {
Private Integer DeptID;
Private String Deptname;
Public Department () {

}
Public Department (Integer deptid, String deptname) {
Super ();
This.deptid = DeptID;
This.deptname = Deptname;
}
@Override
Public String toString () {
Return "Department [deptid=" + DeptID + ", deptname=" + Deptname + "]";
}
Public Integer Getdeptid () {
return deptid;
}
public void Setdeptid (Integer deptid) {
This.deptid = DeptID;
}
Public String Getdeptname () {
return deptname;
}
public void Setdeptname (String deptname) {
This.deptname = Deptname;
}

}

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Employee.java:

Package Com.springmvc.pojo;

public class Employee {
private int id;
private String name;
Private String Mail;
private int gender;
Private Department Dept;
Public Employee () {

}
public Employee (int ID, string name, string mail, int gender, Department dept) {
Super ();
This.id = ID;
THIS.name = name;
this.mail = mail;
This.gender = gender;
this.dept = Dept;
}
@Override
Public String toString () {
Return "Employee [id=] + ID +", name= "+ name +", mail= "+ Mail +", gender= "+ Gender +", dept= "+ Dept
+ "]";
}
public int getId () {
return ID;
}
public void setId (int id) {
This.id = ID;
}
Public String GetName () {
return name;
}
public void SetName (String name) {
THIS.name = name;
}
Public String Getmail () {
return mail;
}
public void Setmail (String mail) {
this.mail = mail;
}
public int Getgender () {
return gender;
}
public void Setgender (int gender) {
This.gender = gender;
}
Public Department getdept () {
return dept;
}
public void Setdept (Department dept) {
this.dept = Dept;
}

}

Springmvc-2 (rest-style additions and deletions)-code (1)