Sql server 如何在Spring Boot中将输入文本与数据库值进行比较?
我想做的是:在html中输入文本,例如:11:00:00。然后将该输入值与数据库中的列时间进行比较,并显示与11:00:00相关的数据。我想我必须将输入文本从Html传输到控制器,保存到一个变量中,然后在存储库文件中,我使用语法选择。。。从…起时间=XXX,但我不知道怎么做 SQL server中的我的表是product,有4列:id、TAG00我的温度数据、日期、时间 谢谢你的帮助 AppController.java html我使用Graph ChartJS显示数据库中的数据和时间Sql server 如何在Spring Boot中将输入文本与数据库值进行比较?,sql-server,spring-boot,spring-data-jpa,chart.js,thymeleaf,Sql Server,Spring Boot,Spring Data Jpa,Chart.js,Thymeleaf,我想做的是:在html中输入文本,例如:11:00:00。然后将该输入值与数据库中的列时间进行比较,并显示与11:00:00相关的数据。我想我必须将输入文本从Html传输到控制器,保存到一个变量中,然后在存储库文件中,我使用语法选择。。。从…起时间=XXX,但我不知道怎么做 SQL server中的我的表是product,有4列:id、TAG00我的温度数据、日期、时间 谢谢你的帮助 AppController.java html我使用Graph ChartJS显示数据库中的数据和时间 <
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:th="http://www.thymeleaf.org">
<div style="position:relative;left:50px;top:5px;" > <!-- Position:
relative(tuong quan theo left,right,bottom,top), absolute,fixed -->
<a href="/">Home</a>
</div>
<script
src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.8.0/Chart.min.js">
</script>
<link rel="stylesheet"href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-datalabels@0.5.0">
</script> <!-- thu vien dung de hien thi gia tri tren bieu do -->
<div class="container">
<canvas id="ChartBar"></canvas>
</div>
<div class="container">
<canvas id="myChart1" width ="350" height="350"></canvas>
</div>
<script th:inline="javascript">
let myChart1 = document.getElementById('myChart1').getContext('2d');
// Global Options
Chart.defaults.global.defaultFontFamily = 'Lato';
Chart.defaults.global.defaultFontSize = 18;
Chart.defaults.global.defaultFontColor = '#777';
let massPopChart = new Chart(myChart1, {
type:'bar', // bar, horizontalBar, pie, line, doughnut, radar, polarArea
data:{
//labels: [1,3,5,7];
labels:/*[[${listTime}]]*/,<!--my Time data-->
datasets:[{
label:'Temperature',
//data: [2,4,6,8];
data:/*[[${listData}]]*/, <!--my Temperature data-->
backgroundColor:'rgba(255, 99, 132, 0.6)',
fill: false,
borderWidth:1,
borderColor:'rgba(255, 0, 0, 0.6)', //thay doi mau cho Line
hoverBorderWidth:1,
hoverBorderColor:'#111',
pointRadius: 3
}]
},
options: {
legend : {
display: false,
},
responsive : true ,
maintainAspectRatio: false,
plugins: { //plugin dung de hien thi gia tri len bieu do
datalabels: {
display: function(context) {
return context.dataIndex % 1;
},
backgroundColor: function(context) {
return context.dataset.backgroundColor;
},
backgroundColor: 'rgba(255, 255, 255,0)',
borderRadius: 2,
anchor : 'end',
align : 'top',
color: 'black',
font: {
weight: 'bold'
},
formatter: Math.round
}
},
scales: {//scales dung de cai dat option cho cot X,Y
yAxes: [{
ticks: {
beginAtZero: true,
stepSize: 0.1,
min: 24,
max: 25,
fontColor : 'blue'
},
}],
xAxes: [{
ticks: {
fontColor: 'blue'
},
}]
}
}
});
试试看
ProductRepository.java
公共接口ProductRepository扩展了JpaRepository{
公开名单findByTag00Is@Paramtag00floattag00;
公开名单findByTimeIs@Paramtimefloat时间2;
}
findByTimeIsfloat time2这与选择相同。。。从…起其中时间=时间2
AppController.java
公共类AppController{
@自动连线
私人产品服务;
@自动连线
私人产品储存库prorepo;
@请求映射/图表线
公共字符串viewLineModel模型,@RequestParamname=time,required=false浮点时间{
//随时间做任何事
//示例:propero.findbytime;
}
那ChartLine.html呢?我需要一个文本框来输入时间,然后比较html中的时间和数据库中的时间。。。
public interface ProductRepository extends JpaRepository<Product, Long> {
@Query(value="SELECT tag00 FROM Product",nativeQuery =true)
public List<Object[]> findByTag00(@Param("tag00")float tag00);
@Query(value="SELECT time FROM Product",nativeQuery =true)
public List<Object[]> findByTime(@Param("time")String time);}
@Entity
public class Product {
public int id;
public float tag00;
public String date;
public String time;
protected Product() {
}
protected Product(int id, float tag00, String date, String time) {
super();
this.id = id;
this.tag00 = tag00;
this.date = date;
this.time = time;
}
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public float getTAG00() {
return tag00;
}
public void setTAG00(float tag00) {
this.tag00 = tag00;
}
public String getDate() {
return date;
}
public void setDate(String date) {
this.date = date;
}
public String getTime() {
return time;
}
public void setTime(String time) {
this.time = time;
}
}
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:th="http://www.thymeleaf.org">
<div style="position:relative;left:50px;top:5px;" > <!-- Position:
relative(tuong quan theo left,right,bottom,top), absolute,fixed -->
<a href="/">Home</a>
</div>
<script
src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.8.0/Chart.min.js">
</script>
<link rel="stylesheet"href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-datalabels@0.5.0">
</script> <!-- thu vien dung de hien thi gia tri tren bieu do -->
<div class="container">
<canvas id="ChartBar"></canvas>
</div>
<div class="container">
<canvas id="myChart1" width ="350" height="350"></canvas>
</div>
<script th:inline="javascript">
let myChart1 = document.getElementById('myChart1').getContext('2d');
// Global Options
Chart.defaults.global.defaultFontFamily = 'Lato';
Chart.defaults.global.defaultFontSize = 18;
Chart.defaults.global.defaultFontColor = '#777';
let massPopChart = new Chart(myChart1, {
type:'bar', // bar, horizontalBar, pie, line, doughnut, radar, polarArea
data:{
//labels: [1,3,5,7];
labels:/*[[${listTime}]]*/,<!--my Time data-->
datasets:[{
label:'Temperature',
//data: [2,4,6,8];
data:/*[[${listData}]]*/, <!--my Temperature data-->
backgroundColor:'rgba(255, 99, 132, 0.6)',
fill: false,
borderWidth:1,
borderColor:'rgba(255, 0, 0, 0.6)', //thay doi mau cho Line
hoverBorderWidth:1,
hoverBorderColor:'#111',
pointRadius: 3
}]
},
options: {
legend : {
display: false,
},
responsive : true ,
maintainAspectRatio: false,
plugins: { //plugin dung de hien thi gia tri len bieu do
datalabels: {
display: function(context) {
return context.dataIndex % 1;
},
backgroundColor: function(context) {
return context.dataset.backgroundColor;
},
backgroundColor: 'rgba(255, 255, 255,0)',
borderRadius: 2,
anchor : 'end',
align : 'top',
color: 'black',
font: {
weight: 'bold'
},
formatter: Math.round
}
},
scales: {//scales dung de cai dat option cho cot X,Y
yAxes: [{
ticks: {
beginAtZero: true,
stepSize: 0.1,
min: 24,
max: 25,
fontColor : 'blue'
},
}],
xAxes: [{
ticks: {
fontColor: 'blue'
},
}]
}
}
});