Spring MVC框架checkboxes标签的三种使用方式

我就是我 2022-10-01 00:39 274阅读 0赞

代码：

checkboxesForm.jsp

[html] view plain copy

  1. <%@ page language=”java”contentType=”text/html; charset=UTF-8”pageEncoding=”UTF-8”%>
  2. <%@ taglib prefix=”form”uri=”http://www.springframework.org/tags/form“ %>
  3. <!DOCTYPE html PUBLIC “-//W3C//DTD HTML 4.01 Transitional//EN” “http://www.w3.org/TR/html4/loose.dtd"**>**
  4. <**html**>
  5. <**head**>
  6. <**metahttp-equiv=”Content-Type”content=”text/html; charset=UTF-8”>**
  7. <**title**>测试checkboxes标签</**title**>
  8. </**head**>
  9. <**body**>
  10. <**h3**>form:checkboxes测试</**h3**>
  11. <**form:formmodelAttribute=”user”method=”post”action=”checkboxesForm”>**
  12. <**table**>
  13. <**tr**>
  14. <**td**>选择课程：</**td**>
  15. <**td**>
  16. <**form:checkboxesitems=”${courseList}“path=”courses”/>**
  17. </**td**>
  18. </**tr**>
  19. </**table**>
  20. </**form:form**>
  21. </**body**>
  22. </**html**>

checkboxesForm2.jsp

[html] view plain copy

  1. <%@ page language=”java”contentType=”text/html; charset=UTF-8”
  2. pageEncoding=”UTF-8”%>
  3. <%@ taglib prefix=”form”uri=”http://www.springframework.org/tags/form“ %>
  4. <!DOCTYPE html PUBLIC “-//W3C//DTD HTML 4.01 Transitional//EN” “http://www.w3.org/TR/html4/loose.dtd"**>**
  5. <**html**>
  6. <**head**>
  7. <**metahttp-equiv=”Content-Type”content=”text/html; charset=UTF-8”>**
  8. <**title**>测试checkboxes标签</**title**>
  9. </**head**>
  10. <**body**>
  11. <**h3**>form:checkboxes测试</**h3**>
  12. <**form:formmodelAttribute=”user”method=”post”action=”checkboxesForm2”>**
  13. <**table**>
  14. <**tr**>
  15. <**td**>选择课程:</**td**>
  16. <**td**>
  17. <**form:checkboxesitems=”${courseMap}“path=”courses”/>**
  18. </**td**>
  19. </**tr**>
  20. </**table**>
  21. </**form:form**>
  22. </**body**>
  23. </**html**>

checkboxesForm3.jsp

[html] view plain copy

  1. <%@ page language=”java”contentType=”text/html; charset=UTF-8”
  2. pageEncoding=”UTF-8”%>
  3. <%@ taglib prefix=”form”uri=”http://www.springframework.org/tags/form“ %>
  4. <!DOCTYPE html PUBLIC “-//W3C//DTD HTML 4.01 Transitional//EN” “http://www.w3.org/TR/html4/loose.dtd"**>**
  5. <**html**>
  6. <**head**>
  7. <**metahttp-equiv=”Content-Type”content=”text/html; charset=UTF-8”>**
  8. <**title**>测试checkboxes标签</**title**>
  9. </**head**>
  10. <**body**>
  11. <**h3**>form:checkboxes测试</**h3**>
  12. <**form:formmodelAttribute=”employee”method=”post”action=”checkboxesForm3”>**
  13. <**table**>
  14. <**tr**>
  15. <**td**>选择部门:</**td**>
  16. <**td**>
  17. <**form:checkboxes**items=”${deptList}“path=”depts”
  18. itemLabel=”name”itemValue=”id”/>
  19. </**td**>
  20. </**tr**>
  21. </**table**>
  22. </**form:form**>
  23. </**body**>
  24. </**html**>

User.java

[java] view plain copy

  1. package com.bean;
  3. import java.io.Serializable;
  4. import java.util.List;
  6. public**class User implements** Serializable {
  7. private List courses;
  9. public User() {
  10. super();
  11. // TODO Auto-generated constructor stub
  12. }
  14. public List getCourses() {
  15. return courses;
  16. }
  18. public**void** setCourses(List courses) {
  19. this.courses = courses;
  20. }
  22. }

Dept.java

[java] view plain copy

  1. package com.bean;
  3. public**class** Dept {
  4. private Integer id;
  5. private String name;
  6. public Dept() {
  7. super();
  8. // TODO Auto-generated constructor stub
  9. }
  10. public Dept(Integer id, String name) {
  11. super();
  12. this.id = id;
  13. this.name = name;
  14. }
  15. public Integer getId() {
  16. return id;
  17. }
  18. public**void** setId(Integer id) {
  19. this.id = id;
  20. }
  21. public String getName() {
  22. return name;
  23. }
  24. public**void** setName(String name) {
  25. this.name = name;
  26. }
  28. }

Employee.java

[java] view plain copy

  1. package com.bean;
  3. import java.util.List;
  5. public**class** Employee {
  6. private List depts;
  8. public List getDepts() {
  9. return depts;
  10. }
  12. public**void** setDepts(List depts) {
  13. this.depts = depts;
  14. }
  16. }

UserController.java

[java] view plain copy

  1. package com.control;
  3. import java.util.ArrayList;
  4. import java.util.HashMap;
  5. import java.util.List;
  6. import java.util.Map;
  8. import org.springframework.stereotype.Controller;
  9. import org.springframework.ui.Model;
  10. import org.springframework.web.bind.annotation.RequestMapping;
  11. import org.springframework.web.bind.annotation.RequestMethod;
  13. import com.bean.Dept;
  14. import com.bean.Employee;
  15. import com.bean.User;
  17. @Controller
  18. public**class** UserController {
  19. /*
  20. * 第一种方式
  21. */
  22. @RequestMapping(value=”/checkboxesForm”,method=RequestMethod.GET)
  23. public String registerForm(Model model){
  24. User user=new User();
  25. // 为集合变量courses添加“JAVAEE”和“Spring”，页面的checkbox复选框这两项会被选中
  26. List list = new ArrayList();
  27. list.add(“JAVAEE”);
  28. list.add(“Spring”);
  29. user.setCourses(list);
  30. // 页面展现的可供选择的复选框内容courseList
  31. List courseList = new ArrayList();
  32. courseList.add(“JAVAEE”);
  33. courseList.add(“Mybatis”);
  34. courseList.add(“Spring”);
  35. // model中添加属性user和courseList
  36. model.addAttribute(“user”,user);
  37. model.addAttribute(“courseList”,courseList);
  38. return“checkboxesForm”;
  39. }
  41. /*
  42. * 第二种方式
  43. */
  44. @RequestMapping(value=”/checkboxesForm2”,method=RequestMethod.GET)
  45. public String registerForm2(Model model){
  46. User user=new User();
  47. // 为集合变量courses添加“JAVAEE”和“Spring”，页面的checkbox复选框这两项会被选中
  48. List list = new ArrayList();
  49. list.add(“1”);
  50. list.add(“3”);
  51. user.setCourses(list);
  52. // 页面展现的可供选择的复选框内容courseList
  53. Map courseMap = new HashMap();
  54. courseMap.put(“1”,”JAVAEE”);
  55. courseMap.put(“2”,”Mybatis”);
  56. courseMap.put(“3”,”Spring”);
  57. // model中添加属性user和courseList
  58. model.addAttribute(“user”,user);
  59. model.addAttribute(“courseMap”,courseMap);
  60. return“checkboxesForm2”;
  61. }
  63. /*
  64. * 第三种方式
  65. */
  66. @RequestMapping(value=”/checkboxesForm3”,method=RequestMethod.GET)
  67. public String registerForm3(Model model) {
  68. Employee employee = new Employee();
  69. Dept dept = new Dept(1,”开发部”);
  70. // 为集合变量depts添加Dept对象，该对象id=1，name=开发吧，页面的checkbox复选框这一项会被选中
  71. List list = new ArrayList();
  72. list.add(dept);
  73. employee.setDepts(list);
  74. // 页面展现的可供选择的复选框内容deptList
  75. List deptList = new ArrayList();
  76. deptList.add(dept);
  77. deptList.add(new Dept(2,”销售部”));
  78. deptList.add(new Dept(3,”财务部”));
  79. // model中添加属性employee和deptList
  80. model.addAttribute(“employee”,employee);
  81. model.addAttribute(“deptList”,deptList);
  82. return“checkboxesForm3”;
  83. }
  84. }

截图：

Center

Center 1

Center 2

发表评论

表情：
评论列表 （有 0 条评论，274人围观）

还没有评论，来说两句吧...

相关阅读