下面小编就为大家带来一篇通过button将form表单的数据提交到action层的实例。小编觉得挺不错的，现在就分享给大家，也给大家做个参考。一起跟随小编过来看看吧
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：
<form id="handleform">
<!-- 根据学生id修改学生信息 -->
<input type="hidden" name="student.stuid"/><!-- 隐藏学生id -->
<p class="input-group el_modellist" role="toolbar">
<span class="el_spans">要修改的班级：</span>
<select class="selectpicker form-control" name="student.className" id="fmchechunit" title="请选择">
<option value="0">--请选择班级--</option>
<option value="1">软件一班</option>
<option value="2">软件二班</option>
</select>
</p>
<span class="el_spans">学生姓名：</span>
<input type="text" id="student.name"/>
<p class="input-group el_modellist" role="toolbar">
<span class="el_spans">学生详细信息：</span>
<textarea id="studentMsg" class="form-control texta" rows="10" name="student.msg"></textarea>
</p>
<p class="modal-footer">
<button id="submitButton" onclick="saveButton()" type="button" class="btn btn-primary">更新</button>
</p>
</form>
<script type="text/javascript">
function saveButton(){
//通过ajax异步将数据发送给action层
$.ajax({
url : '${pageContext.request.contextPath}/stu/stu_upstudent.action',//这里写上你的action路径
data : $("#handleform").serialize(),//将你在form表单上提交的数据序列化
type : 'POST', //提交方式
dataType : 'json', //提交的数据类型
async:true, //是否异步
success : function(data) {//这是个回调函数 data表示从action中传过来的json数据
//弹出从action层传过来的json格式的数据(用来显示是否更新成功)
alert(data.result);
}
});
}
</script>action层中的代码：
@Controller
@Scope("prototype")
// 控制层，多例模式
public class DangerAction extends ActionSupport {
private Student student;
public void setStudent(Student student){
this.student = student;
}
public Student getStudent(){
return this.student;
}
@Resource
private StudentService studentService;
public StudentService getStudentService() {
return studentService;
}
public void setStudentService(StudentService studentService) {
this.studentService = studentService;
}
public String updateStudent throws Exception{
boolean flag = studentService.update(student);
HttpServletResponse response = ServletActionContext.getResponse();
//通过json对象将修改反馈信息响应给jsp
JSONObject json = new JSONObject();
if (flag) {
System.out.println(flag);
json.put("result", "修改成功");
} else {
System.out.println(flag);
json.put("result", "修改失败");
}
System.out.println(json.toString());
response.setContentType("text/html;charset=UTF-8");
response.getWriter().write(json.toString());
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
}
}javabean代码：
public class Student{
private int stuid;
private int className;
private int name;
private String studentMsg;
public int getStuid() {
return stuid;
}
public void setStuid(int stuid) {
this.stuid = stuid;
}
public int getClassName() {
return className;
}
public void setClassName(int className) {
this.className = className;
}
public int getName() {
return name;
}
public void setName(int name) {
this.name = name;
}
public String getStudentMsg() {
return studentMsg;
}
public void setStudentMsg(String studentMsg) {
this.studentMsg = studentMsg;
}
} 
