activiti+springMVC+mybatis rest风格整合demo

package com.hxyd.controller; import java.util.ArrayList; import java.util.List; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import net.sf.json.JSONObject; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.http.converter.HttpMessageConverter; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import com.hxyd.model.Student; import com.hxyd.service.IStudentService; @Controller public class StudentController { @Autowired private IStudentService studentService; // 【关于页面传值与controller中自动装配的疑惑及解释】 // 1, 在js中$.ajax()函数的data属性解释为：dataObject,String // 发送到服务器的数据。将自动转换为请求字符串格式。GET 请求中将附加在 URL 后。这样就是说ajax请求正文为 // id=1&name=lwj&age=1&_method=PUT 是form形式的请求 // 2, 在controller中根据org.springframework.http.converter.HttpMessageConverter // 进行自动装配为JavaBean（目测装配映射是根据参数名称与JavaBean的属性进行映射）。 // 也可以通过request.getParameter()获得参数 // 3, 在restful中需要对浏览器支持http DELETE, PUT等方法，【必须使用form形式？】，参数为：_method才可以 // 在controller里通过@RequestMapping(value = "/students", method = RequestMethod.DELETE) // 接收到，所以JS中看似提交的是json对象，实质在传值过程中仍然为form形式！ // 传递JSON字符串 参考http://www.cnblogs.com/quanyongan/archive/2013/04/16/3024741.html // http://www.linuxidc.com/Linux/2016-05/131019.htm // Method 枚举 // public enum RequestMethod { // GET, HEAD, POST, PUT, PATCH, DELETE, OPTIONS, TRACE // } @RequestMapping(value = "/students", method = RequestMethod.POST) @ResponseBody public Object saveStudent(Student student) { JSONObject jsonObject = new JSONObject(); try { studentService.saveStudent(student); jsonObject.put("msg", "注册人员信息成功"); } catch (Exception e) { e.printStackTrace(); jsonObject.put("msg", "注册人员信息失败"); }finally { System.out.println(jsonObject.toString()); } return jsonObject; } // \\d+正则表达式 @RequestMapping(value = "/students/{id:\\d+}", method = RequestMethod.DELETE) @ResponseBody public Object deletePerson(@PathVariable("id") int id) { JSONObject jsonObject = new JSONObject(); try { Integer rows = studentService.deleteStudent(id); jsonObject.put("msg", "删除人员信息成功, 影响行数: " + rows); } catch (Exception e) { e.printStackTrace(); jsonObject.put("msg", "删除人员信息失败"); } finally { System.out.println(jsonObject.toString()); } return jsonObject; } @RequestMapping(value = "/students", method = RequestMethod.PUT) @ResponseBody public Object updatePerson(Student student) { JSONObject jsonObject = new JSONObject(); try { Integer rows = studentService.updateStudent(student); jsonObject.put("msg", "更新人员信息成功, 影响行数： " + rows); } catch (Exception e) { e.printStackTrace(); jsonObject.put("msg", "更新人员信息失败 "); } finally{ System.out.println(jsonObject.toString()); } return jsonObject; } @RequestMapping(value = "/students/{id:\\d+}", method = RequestMethod.GET) public @ResponseBody Object getStudent(@PathVariable("id") int id) { JSONObject jsonObject = new JSONObject(); try { Student student = studentService.getStudentByID(id); if (student == null) { jsonObject.put("success", false); } else { jsonObject.put("success", true); jsonObject.put("data", JSONObject.fromObject(student)); } } catch (Exception e) { jsonObject.put("success", false); } finally { System.out.println(jsonObject.toString()); } return jsonObject; } @RequestMapping(value = "/students", method = RequestMethod.PATCH) public @ResponseBody List<Student> getStudentList(@RequestParam(value = "name", required = false, defaultValue = "") String name) { System.out.println("传入参数 ： name 值：" + name); List<Student> returnValue = null; try { returnValue = studentService.getStudentList(); } catch (Exception e) { returnValue = new ArrayList<Student>(); } return returnValue; } }