SpringMVC+Spring+MyBatis_Demo

package com.ssm.controllers; import java.util.Map; import javax.validation.Valid; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.validation.BindingResult; import org.springframework.validation.ObjectError; 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 org.springframework.web.bind.annotation.RequestParam; import com.ssm.entities.Employee; import com.ssm.services.DepartmentService; import com.ssm.services.EmployeeService; @Controller public class MainController { @Autowired private DepartmentService departmentService; @Autowired private EmployeeService employeeService; // 得到所有的employees @RequestMapping("/emps") public String getAllEmployee(Map<String, Object> map) { map.put("allEmployees", employeeService.getAll()); return "lists"; } @ModelAttribute public void getEmployee( @RequestParam(required = false, value = "id") Integer id, Map<String, Object> map) { if (id != null) { map.put("employee", employeeService.get(id)); } } // 修改页面前得到employee @RequestMapping(value = "/emp/{id}", method = RequestMethod.GET) public String input(@PathVariable("id") Integer id, Map<String, Object> map) { map.put("employee", employeeService.get(id)); System.out.println("=============="+employeeService.get(id).toString()); map.put("allDepartments", departmentService.getDepartments()); return "input"; } // 增加页面前新建employee @RequestMapping(value = "/emp", method = RequestMethod.GET) public String input(Map<String, Object> map) { map.put("allDepartments", departmentService.getDepartments()); map.put("employee", new Employee()); return "input"; } // 增加页面保存employee @RequestMapping(value = "/emp", method = RequestMethod.POST) public String save(@Valid Employee employee, BindingResult bindingResult, Map<String, Object> map) { if (bindingResult.hasErrors()) { for (ObjectError error : bindingResult.getAllErrors()) { System.out.println(error.getObjectName() + " : " + error.getDefaultMessage()); } map.put("allDepartments", departmentService.getDepartments()); return "input"; } System.out.println(employee.toString()); employeeService.save(employee); return "redirect:/emps"; } // 修改页面保存employee @RequestMapping(value = "/emp", method = RequestMethod.PUT) public String update(Employee employee) { employeeService.save(employee); return "redirect:/emps"; } // 删除employee @RequestMapping(value = "/emp/{id}", method = RequestMethod.DELETE) public String delete(@PathVariable("id") Integer id) { employeeService.delete(id); return "redirect:/emps"; } }