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  • Form表单如何可以传递多个值传递List数组对象到后台的解决办法

    举例说明:

    后台有一个对象 User ,结构如下:

    后台有一个对象 User ,结构如下:
    
    public class User{
     private String username;
    
     private List<PhotoDo> photo;
    
     ..get ....set.....
    
    }
    
    public class PhotoDo{
     private String id;
    
     private String name;
    
      ...get...set...
    }
    

      Controller中接受方法 getUser

    @reqeustMapping("/getUser")
    public void getUser(User user){
    
    ...实现方法...
    
    }
    
    前台Form这么写:
    
    <form>
         <input type="text" name="username" aciton="..">
    
         <input type="text" name="photo[0].id">
         <input type="text" name="photo[0].name">
         <input type="text" name="photo[1].id">
         <input type="text" name="photo[1].name">
         <input type="text" name="photo[2].id">
         <input type="text" name="photo[2].name">
    </form>
    

      这里下标可以用var = status-1来解决

    第二个例子:

    对象Cltc和list实体类

    package com.ABC.pojo;
    
    import java.util.Date;
    
    public class Cltc {
        private Integer id;
    
        private Integer classid;//班级id
    
        private Integer teacherid;//教师id
    
        private Integer courseid;//课程id
    
        private Date time;//排课时间
    
        private Date start;//开始上课时间
    
        private Date end;//结束上课时间
        
        private Classinfo classinfo;//班级  排课状态和 结课状态  入学时间
    
    	public Classinfo getClassinfo() {
    		return classinfo;
    	}
    
    	public void setClassinfo(Classinfo classinfo) {
    		this.classinfo = classinfo;
    	}
    
    	public Integer getId() {
            return id;
        }
    
        public void setId(Integer id) {
            this.id = id;
        }
    
        public Integer getClassid() {
            return classid;
        }
    
        public void setClassid(Integer classid) {
            this.classid = classid;
        }
    
        public Integer getTeacherid() {
            return teacherid;
        }
    
        public void setTeacherid(Integer teacherid) {
            this.teacherid = teacherid;
        }
    
        public Integer getCourseid() {
            return courseid;
        }
    
        public void setCourseid(Integer courseid) {
            this.courseid = courseid;
        }
    
        public Date getTime() {
            return time;
        }
    
        public void setTime(Date time) {
            this.time = time;
        }
    
        public Date getStart() {
            return start;
        }
    
        public void setStart(Date start) {
            this.start = start;
        }
    
        public Date getEnd() {
            return end;
        }
    
        public void setEnd(Date end) {
            this.end = end;
        }
    
    	@Override
    	public String toString() {
    		return "Cltc [id=" + id + ", classid=" + classid + ", teacherid=" + teacherid + ", courseid=" + courseid
    				+ ", time=" + time + ", start=" + start + ", end=" + end + ", classinfo=" + classinfo + "]";
    	}
    
    	
    
        
        
    }
    

      /************************************************/

    package com.ABC.vo;
    
    import java.util.List;
    
    import com.ABC.pojo.Cltc;
    
    public class CltcFormVo {
    
    	private List<Cltc> cltcList;
    
    	public List<Cltc> getCltcList() {
    		return cltcList;
    	}
    
    	public void setCltcList(List<Cltc> cltcList) {
    		this.cltcList = cltcList;
    	}
    
    	
    
    	
    	
    	
    	
    }
    

      controller层

    			@reqeustMapping("paike")
    public void getCltcFormVo(CltcFormVo cltcFormVo){
    
    List<Cltc> cltcList = cltcFormVo.getCltcList();
    ...实现方法...
    
    }
    

      

    jsp页面的信息:

    <div class="panel panel-default">
    				<div class="panel-heading">排课信息</div>
    				<table id="stuTable" class="table table-hover table-striped table-bordered" border="1">
    					<tr>
    						<th class="text-center" style="50px">顺序</th>
    						<th class="text-center">课程</th>
    						<th class="text-center">老师</th>
    						<th class="text-center" style="200px" >开始时间</th>
    						<th class="text-center" style="200px" >结束时间</th>
    					</tr>
    
    							<!--页面的接收信息-->
    							<!--注意这里的
    								[status-1]相当于从0开始往下循环
                                    cltcList[status-1]中的cltcList必须和CltcFormVo中的
                                    private List<Cltc> cltcList;
                                    	cltcList一样
    							-->
    
    			<c:forEach items="${courseList }" var="course" varStatus="status">  
    			<input type="hidden" id="classid" name="cltcList[${status.count-1 }].classid" value="${classinfo.id }">
    			<input type="hidden" id="time" name="cltcList[${status.count-1 }].time" value="2018-09-09"  />
    					<tr>
    						<td id="count" class="text-center">${status.count}</td>
    						<input type="hidden" id="courseid" name="cltcList[${status.count-1 }].courseid" value="${course.id }">
    						<td >${course.name }</td>
    						
    						<td>
    							<select class="form-control" id="teacherid" name="cltcList[${status.count-1 }].teacherid">
    							
    								<option value="${course.teacher.id }">${course.teacher.name }</option>
    								
    							</select>
    						</td>
    						<td><input id="start" name="cltcList[${status.count-1 }].start"  class="form-control" type="text" onclick="WdatePicker();"/></td>
    						<td><input id="end" name="cltcList[${status.count-1 }].end"  class="form-control" type="text" onclick="WdatePicker();"/></td>
    					</tr>
    					
    					</c:forEach> 	
    					
    					
    					<tr>
    						<td colspan="5" class="text-center">
    						<!-- onclick="window.location.href='/paike/cltc/paiKe?id=${cltc.id}'" -->
    						
    							<input id="save" type="button" class="btn btn-success"  value="保存排课" />
    							<input id="cancel" type="button" class="btn btn-danger" value="取消排课" />
    						</td>
    					</tr>
    				</table>
    			</div>
    
    
    
    
    
    
    		
    

      

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  • 原文地址:https://www.cnblogs.com/charlypage/p/8850183.html
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