如何解决多对一数据表Spring MVC使用Ajax休眠
我试图在Spring中显示带有dataTable的模型，但是如何从@ManyToOne关系中获取值？下面是我的代码
package com.hospital.model;
import java.io.Serializable;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import com.fasterxml.jackson.annotation.JsonBackReference;
import com.fasterxml.jackson.annotation.JsonIgnore;
@Entity(name="users_roles")
public class Users_Roles implements Serializable{
private static final long serialVersionUID = -1L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "users_roles_id",updatable = false,nullable = false)
private long users_roles_id;
@JsonIgnore
@ManyToOne(cascade = CascadeType.ALL)
@JoinColumn(name = "users_id",nullable = false,insertable = false,referencedColumnName = "users_id")
private Users users;
@JsonIgnore
@ManyToOne(cascade = CascadeType.ALL)
@JoinColumn(name = "roles_id",referencedColumnName = "roles_id")
private Role roles;
private boolean status;
public Users_Roles() {
}
public long getUsers_roles_id() {
return users_roles_id;
}
public void setUsers_roles_id(long users_roles_id) {
this.users_roles_id = users_roles_id;
}
public Users getUsers() {
return users;
}
public void setUsers(Users users) {
this.users = users;
}
public Role getRoles() {
return roles;
}
public void setRoles(Role roles) {
this.roles = roles;
}
public boolean isstatus() {
return status;
}
public void setStatus(boolean status) {
this.status = status;
}
}
<!DOCTYPE html>
<html xmlns:layout="http://www.ultraq.net.nz/thymeleaf/layout"
layout:decorate="~{layouts/main}">
<head>
<Meta charset="ISO-8859-1">
<title>Role Assign to User</title>
<link rel="stylesheet" type="text/css" href="/static/assets/css/jquery.dataTables.min.css">
<link rel="stylesheet" type="text/css" href="/static/assets/css/dataTables.bootstrap4.min.css">
</head>
<body>
<div layout:fragment="content" style="margin-right: 10px; margin-left: 10px;">
<div class="row" style="margin-top: 20px;">
<div class="col-sm-4 col-5">
<h4 class="page-title">Account</h4>
</div>
<div class="col-sm-8 col-9 text-right m-b-20">
<a th:href="${'/admin/users_roles/create'}"
class="btn btn btn-primary btn-rounded float-right"><i
class="fa fa-plus"></i> Add New</a>
</div>
</div>
<div class="row">
<div class="col-md-12">
<div class="table-responsive">
<table
class="table table-border table-striped custom-table mb-0" id="dataTable">
<thead>
<tr>
<th>ID</th>
<th>Account ID</th>
<th>Role ID</th>
<th>Status</th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<!-- disable confirm modal -->
<div class="modal fade" id="disableConfirm">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<a href="#" class="close" data-dismiss="modal">×</a>
<h4>disable Record</h4>
</div>
<div class="modal-body">
<h4>Are you sure you want to disable this?</h4>
</div>
<div class="modal-footer">
<a href="#" class="btn btn-primary" data-dismiss="modal">Cancel</a>
<a href="#" class="btn btn-danger" onclick="Confirmdisable()">Confirm</a>
</div>
</div>
</div>
</div>
<script type="text/javascript">
$(document).ready(loaddata);
function loaddata() {
$("#dataTable")
.DataTable(
{
"ajax" : {
"url" : "/admin/users_roles/list","type" : "GET","datatype" : "json","dataSrc" : function(json) {
for (var i = 0; i < json.length; i++) {
json[i][0] = json[i].users_roles_id;
json[i][1] = json[i].usersId;
json[i][2] = json[i].roles_id;
json[i][3] = json[i].status == 1 ? '<span class="custom-badge status-green">Active</span>' : '<span class="custom-badge status-red">Inactive</span>';
json[i][4] = "<a href='/admin/users_roles/update/"+json[i].users_roles_id+"' class='btn btn-primary btn-outline'><i class='fa fa-pencil'></i></a>"
+ " "
+ "<a href='#' onclick='disableRecord("+ json[i].users_roles_id+")' class='btn btn-danger btn-outline'><i class='fa fa-trash'></i></a>";
}
return json;
}
},"language" : {
"emptyTable" : "No data found,please add new"
}
});
}
//disable
var id;
function disableRecord(usersId) {
id = usersId;
$("#disableConfirm").modal("show");
}
function Confirmdisable() {
$.ajax({
type : "POST",url : "/admin/users/disable?users_roles_id=" + id,success : function(result) {
window.location.href = "/admin/users_roles/index";
$("#disableConfirm").modal("hide");
}
})
}
</script>
</div>
</body>
</html>
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