在SpringBootJava应用程序中更新数据库条目，并在另一个模式弹出窗口上打开模式弹出窗口

我有以下表单，它从用户获取一些值并生成解密密钥：

<mat-toolbar color="primary">
    <span class="align-center">License Generator</span>
</mat-toolbar>
<br>
<mat-card>
    <table class="generate-full-width" >
    </table>
    <br> <br>
    <mat-card-content>

        <form [formGroup]="form" (submit)="onSubmit()" autocomplete="off" novalidate>
            <table class="generate-full-width">
                <tr>
                    <td colspan="2" width="100%">
                        <mat-form-field class="generate-full-width">
                            <input matInput placeholder="Hardware Key" formControlName="hardwareKey" name="hardwareKey">
                            <mat-error *ngIf="submitted && hasError('hardwareKey', 'required')">hardwareKey is required</mat-error>
                        </mat-form-field>
                    </td>
                    <td colspan="2" width="100%">
                        <mat-form-field class="generate-full-width">
                            <input matInput placeholder="CustomerID" formControlName="customerID" name="customerID">
                            <mat-error *ngIf="submitted && hasError('customerID', 'required')">CustomerID is required</mat-error>
                        </mat-form-field>
                    </td>
                </tr>
                <tr>
                    <td colspan="2" width="100%">
                        <mat-form-field class="generate-full-width">
                            <mat-select placeholder="Product" formControlName="product" name="product" (selectionChange)="getDefaultValues()">
                                <mat-option *ngFor="let product of products" [value]="product.value">
                                    {{product.viewValue}}
                                </mat-option>
                            </mat-select>
                            <mat-error *ngIf="submitted && hasError('product', 'required')">Product is required</mat-error>

                        </mat-form-field>
                    </td>

                    <td colspan="2" width="100%">
                        <mat-form-field class="generate-full-width">
                            <mat-select placeholder="Version" formControlName="Version" name="Version">
                                <mat-option *ngFor="let version of Versions" [value]="version.value">
                                    {{version.viewValue}}
                                </mat-option>
                            </mat-select>
                            <mat-error *ngIf="submitted && hasError('Version', 'required')">Version is required</mat-error>
                        </mat-form-field>
                    </td>
                </tr>
                <tr>
                    <td colspan="2" width="100%">
                        <mat-form-field class="generate-full-width">
                            <input type="text" matInput placeholder="Max User Sessions" formControlName="userSessions" name="userSessions" pattern="[0-9]*"
                                numbersOnly>
                            <mat-error *ngIf="submitted && hasError('userSessions', 'required')">User Sessions is required</mat-error>
                        </mat-form-field>
                    </td>

                    <td colspan="2" width="100%">
                        <mat-form-field class="generate-full-width">
                            <input matInput placeholder="Max Service Connections" formControlName="serviceConnections" name="serviceConnections" numbersOnly>
                            <mat-error *ngIf="submitted && hasError('serviceConnections', 'required')">Service Connections is required</mat-error>
                        </mat-form-field>
                    </td>
                </tr>

                <tr>
                    <td colspan="2" width="100%">
                        <mat-form-field class="generate-full-width">
                            <input matInput placeholder="Max MSANs" formControlName="msan" name="msan" numbersOnly>
                            <mat-error *ngIf="submitted && hasError('msan', 'required')">MSAN is required</mat-error>
                        </mat-form-field>
                    </td>

                    <td colspan="2" width="100%">
                        <mat-form-field class="generate-full-width">
                            <input matInput placeholder="Max CPE" formControlName="cpe" name="cpe" numbersOnly>
                            <mat-error *ngIf="submitted && hasError('cpe', 'required')">CPE is required</mat-error>
                        </mat-form-field>
                    </td>
                </tr>
                <br>
                <tr>
                    <td colspan="5" width="100%">
                        <strong>* Default Expiration Date for all licenses is 01/01/2100 *</strong>
                    </td>
                </tr>
                <br>
                <br>
                <tr>
                    <td colspan="2">
                        <button mat-raised-button color="primary">GENERATE</button>
                    </td>
                    <td>
                        <button mat-raised-button color="warn" style='margin-left:115px' type="reset" >RESET</button>
                    </td>
                    <br>
                </tr>
            </table>
            <br>
            <br>
            <mat-form-field class="generate-full-width">
                <input matInput [readonly]="!editable" placeholder="License Key" style="font-weight: bold;" value={{licenseKey}}>
            </mat-form-field>
        </form>
    </mat-card-content>
</mat-card>

单击generate按钮后，密钥在后端使用密码生成并显示。以下html将显示所有这些键：

<h1 mat-dialog-title color="primary">
    License Details
</h1>
<mat-dialog-content >
        <div style="width:100%;display: flex;flex-direction: column;">

        </div>
</mat-dialog-content>
<mat-dialog-content>
<div class="example-container mat-elevation-z8">

    <table mat-table [dataSource]="customerList" class="a">

        <ng-container matColumnDef="Customer ID" margin-right:10px margin-left:10px>
                <th mat-header-cell *matHeaderCellDef class="customtd" style="font-size:15px;"><strong>Customer Id*</strong></th>
                <td mat-cell *matCellDef="let element" class="customtd"> {{element.customerId}} </td>
        </ng-container>

        <ng-container matColumnDef="Hardware Key" margin-right:10px margin-left:10px>
                <th mat-header-cell *matHeaderCellDef class="customtd" style="font-size:15px;"><strong>Hardware Key</strong></th>
                <td mat-cell *matCellDef="let element" class="customtd"> <textarea rows="2" cols="20" wrap="hard">{{element.hardwareKey}}</textarea> </td>
        </ng-container>

        <ng-container matColumnDef="Product" margin-right:10px margin-left:10px>
                <th mat-header-cell *matHeaderCellDef style="font-size:15px;" class="customtd"><strong>Product</strong></th>
                <td mat-cell *matCellDef="let element"> {{element.product}} </td>
        </ng-container>

        <ng-container matColumnDef="MSAN" margin-right:10px margin-left:10px> 
                <th mat-header-cell *matHeaderCellDef style="font-size:15px;" class="customtd"><strong>MSAN</strong></th>
                <td mat-cell *matCellDef="let element"> {{element.msan}} </td>
        </ng-container>

        <ng-container matColumnDef="CPE" margin-right:10px margin-left:10px>
                <th mat-header-cell *matHeaderCellDef style="font-size:15px;" class="customtd"><strong>CPE</strong></th>
                <td mat-cell *matCellDef="let element"> {{element.cpe}} </td>
        </ng-container>

        <ng-container matColumnDef="Service Connections" margin-right:10px margin-left:10px>
                <th mat-header-cell *matHeaderCellDef style="font-size:15px;" class="customtd"><strong>Service Connections</strong></th>
                <td mat-cell *matCellDef="let element"> {{element.serviceConnections}} </td>
        </ng-container>

        <ng-container matColumnDef="License Key" margin-right:10px margin-left:5px>
                <th mat-header-cell *matHeaderCellDef style="font-weight: bold;" style="font-size:15px;" class="customtd"><strong>License Key</strong></th>
                <td mat-cell *matCellDef="let element"> <textarea rows="2" cols="20" wrap="hard" [readonly]="!editable">{{element.licenseKey}} </textarea></td>
        </ng-container>

        <ng-container matColumnDef="Actions" margin-right:10px margin-left:10px>
                <th mat-header-cell *matHeaderCellDef style="font-weight: bold;" style="font-size:15px;" class="customtd"><strong>Actions</strong></th>
                 <td mat-cell *matCellDef="let element">
                   <button type="button" style="margin-left:5px" (click)="deleteLicense(element.id)">Delete</button>
                   <button type="button" style="margin-left:5px" (click)="openMxkLicenseDetailsDialog()">Update</button>
                   <button type="button" style="margin-left:5px" (click)="copyLicenseToClipboard(element.licenseKey)" class='btn btn-primary'>Copy License Key</button>
                 </td>
        </ng-container>

        <tr mat-header-row *matHeaderRowDef="displayedColumns; sticky:true"></tr>
        <tr mat-row *matRowDef="let row; columns: displayedColumns;"></tr>
    </table>
</div>
</mat-dialog-content>
<br>
<br>
<br>
<strong>* Customer ID might not be present for some products.</strong>
<mat-dialog-actions align="end">
    <button mat-button mat-raised-button mat-dialog-close cdkFocusInitial color="warn">Close</button>
</mat-dialog-actions>

在update按钮中，我想在上面的弹出窗口上打开一个弹出窗口，它只从要更新的用户那里获取msan和cpe。问题是如果这些值被更改，那么键也会更改。我想保持所有其他值如customer id相同，更改msan和cpe并生成一个新的密钥，然后在数据库中更新。
我不能打开另一个弹出窗口在此之上，而且我想更新许可证密钥和msan和cpe与一个单一的按钮。
在后端，我尝试了以下方法：

@PostMapping("updateLicense/{license_id}")
    public boolean updateLicense(@RequestBody License license,@PathVariable("license_id") long license_id) {
        license.setLicense_id(license_id);
        return licenseService.updateLicense(license);
    }

@Override
    public boolean updateLicense(License license) {
        boolean status=false;
        try {
            sessionFactory.getCurrentSession().update(license);
            status=true;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return status;
    }

但是这并没有起作用，并且极大地改变了代码部分，因为它涉及到hibernate以及配置文件和服务文件的添加。现在，我只使用dao和repository。当前代码如下：

@GetMapping("/licenses")
    public List<License> getAllLicense() {
        return licenseDao.getAllLicenses();
    }

    @DeleteMapping("/deleteLicense/{id}")
    public void deleteLicense(@PathVariable("id") Long id,License license) {
        license.setId(id);;
        //mxkLicenseService.deleteMxkLicense(mxkLicense);
        licenseDao.deleteLicense(license);
    }

在crud存储库和jpa存储库中，生成值之后，我找不到任何要更新的函数。上面的更新函数非常适合我尝试的更新，但是在生成值之后更新会给我带来问题。请帮忙。坚持了好几天。从以下示例应用程序获取帮助：https://www.javatpoint.com/angular-spring-crud-example

在SpringBootJava应用程序中更新数据库条目，并在另一个模式弹出窗口上打开模式弹出窗口

暂无答案！

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