通过button将form表单的数据提交到action层

　

form表单中不需要写action的路径，需要给form表单一个唯一的id，将你要提交的信息的表单中的标签name="action中的javabean对象.javabean属性"。给button按钮添加一个onclick()点击事件，并实现该点击事件，在该onclick()方法中通过ajax将form表单中的数据提交给action层

 

JSP页面中的代码：
 1             

 2                 
 3                 
 4                 
class="input-group el_modellist" role="toolbar">
 5                     class="el_spans">要修改的班级：
 6                     class="selectpicker form-control" name="student.className" id="fmchechunit" title="请选择">
 7                         --请选择班级--
 8                         软件一班
 9                         软件二班
10                     
11                 
12                 class="el_spans">学生姓名：
13                 
14                  
class="input-group el_modellist" role="toolbar">
15                      class="el_spans">学生详细信息：
16                      class</span>="form-control texta" rows="10" name="student.msg">
17                  
18 
19                  
class="modal-footer">
20                       class="btn btn-primary">更新
21                    
22             
23             

 

action层中的代码：
 1 @Controller
 2 @Scope("prototype")
 3 // 控制层，多例模式
 4 public class DangerAction extends ActionSupport {
 5     
 6     private Student student;
 7     public void setStudent(Student student){
 8         this.student = student;
 9     }
10     public Student getStudent(){
11         return this.student;
12     }
13     
14     @Resource
15     private StudentService studentService;
16     public StudentService getStudentService() {
17         return studentService;
18     }
19     public void setStudentService(StudentService studentService) {
20         this.studentService = studentService;
21     }
22     public String updateStudent throws Exception{
23         
24         boolean flag = studentService.update(student);
25         HttpServletResponse response = ServletActionContext.getResponse();
26         
27 　　　　　//通过json对象将修改反馈信息响应给jsp
28         JSONObject json = new JSONObject();
29         if (flag) {
30             System.out.println(flag);
31             json.put("result", "修改成功");
32         } else {
33             System.out.println(flag);
34             json.put("result", "修改失败");
35         }
36         System.out.println(json.toString());
37         response.setContentType("text/html;charset=UTF-8");
38         response.getWriter().write(json.toString());
39         return null;//如果不需要跳转页面就写上null,如果要跳转页面就自己另外写上
40     }
41 }

 

 

javabean代码: 
1 public class Student{
 2     private int stuid;
 3     private int className;
 4     private int name;
 5     private String studentMsg;
 6     public int getStuid() {
 7         return stuid;
 8     }
 9     public void setStuid(int stuid) {
10         this.stuid = stuid;
11     }
12     public int getClassName() {
13         return className;
14     }
15     public void setClassName(int className) {
16         this.className = className;
17     }
18     public int getName() {
19         return name;
20     }
21     public void setName(int name) {
22         this.name = name;
23     }
24     public String getStudentMsg() {
25         return studentMsg;
26     }
27     public void setStudentMsg(String studentMsg) {
28         this.studentMsg = studentMsg;
29     }
30     
31 }

 

转载于:https://www.cnblogs.com/lixianyuan-org/p/7492156.html