springMVC自动获取jsp页面input中的值，封装成对象传入后台
最近做公司的项目，项目采用的是ssm框架，发现后台在采集jsp页面表单里面的数据时没有用到传统的request.getParameter()，而是在controller的传入参数多了几个对象。因此发现springMVC的这个功能。
具体例子如下所示：
建立一个jsp页面vacate.jsp
后台接受的controller代码：
[java]
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import com.zyl.nonglin.base.BaseController;
import com.zyl.nonglin.base.entity.Vacate;
@Controller
@RequestMapping(value="/admin/qingjia")
public class VacateController extends BaseController{
/**
* 跳转到请假页面
* @param req
* @param resp
* @return
*/
@RequestMapping(value="/toVacate")
public ModelAndView toVacate(HttpServletRequest req,HttpServletResponse resp){
Map<String,Object> context = getRootMap();
return forword("/qingjia/vacate", context);
}
/**
* 提交请假信息
* @param vacate
* @param req
* @param resp
*/
@RequestMapping(value="/addVacate")
public void addVacate(Vacate vacate,HttpServletRequest req,HttpServletResponse resp){
System.out.println(vacate.getClassNum());//
System.out.println(vacate.getReason());
System.out.println(vacate.getsName());
System.out.println(vacate.getsNum());
System.out.println(vacate.getsPhone());
}
}Vacate实体类
[java]
/**
* 请假信息类
* @author
*
*/
public class Vacate {
private String id;
private String sNum;//学生学号
private String sName;//学生姓名
private String classNum;//班级编号
private String ctime;//请假时间
private String sPhone;//学生电话
private String reason;//理由
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getsNum() {
return sNum;
}
public void setsNum(String sNum) {
this.sNum = sNum;
}
public String getsName() {
return sName;
}
public void setsName(String sName) {
this.sName = sName;
}
public String getClassNum() {
return classNum;
}
public void setClassNum(String classNum) {
this.classNum = classNum;
}
public String getCtime() {
return ctime;
}
public void setCtime(String ctime) {
this.ctime = ctime;
}
public String getsPhone() {
return sPhone;
}
public void setsPhone(String sPhone) {
this.sPhone = sPhone;
}
public String getReason() {
return reason;
}
public void setReason(String reason) {
this.reason = reason;
}
}前端页面样式：
提交后可以看到控制台输出：
转载自：http://blog.csdn.net/qq_28391549/article/details/50470268