使用playframework存储二进制密码哈希值 [英] storing binary password hashes with playframework

问题描述

如何使用CRUD模块将二进制哈希密码存储在二进制类型列中？在纯JAVA中通常我使用Apache Commons编解码器库将二进制哈希存储到postgresql bytea列中，但我不能生成带有Model类或二进制哈希的bytea列...请帮助。

How i store a binary hash password in a binary type column with the CRUD module? In pure JAVA Usually i use the Apache Commons codec libs to store the binary hash into a postgresql bytea column, but i cannot generate neither the bytea column with the Model class or the binary hash... Any help please.

在Model类中，我将属性设置为bytea，注释如下：

In the Model class i set the property as bytea with annotations as follows

@Required
@Column(nullable=false, columnDefinition="BYTEA NOT NULL")
@Password
public byte[] hash;

，但CRUD控制器不显示文本框以输入要进行哈希处理的密码输入。

, but the CRUD controller dont display a textbox to put an input for the password to be hashed.

推荐答案

为密码创建一个单独的 @Transient String 字段从CRUD输入填写：

Create a separate @Transient String field for the password, to be filled in from CRUD input:

@Password
@Transient
public String password;

然后从你的 @Required 注释中删除哈希字段。它根本不需要从CRUD填写。

Then remove the @Required annotation from your hash field. It does not need to be filled in from CRUD at all.

接下来，创建一个新方法并使用 @PrePersist ，因此它将在模型保存之前执行：

Next, create a new method and annotate it with @PrePersist, so it will be executed before the model is saved:

@PrePersist
public void prePersist() throws Exception {
    this.hash = Codec.hexMD5(this.password.getBytes());
}

---

更新：

要在CRUD视图中显示 @Transient 字段，您需要自定义空白查看控制器的CRUD。打开shell /命令提示符并执行以下命令（将your_controller替换为控制器类的实际名称）：

To have the @Transient field appear on your CRUD view, you need to customize the blank view of CRUD of your controller. Open a shell / command prompt and execute the following command (replacing "your_controller" with the actual name of your controller class):

play crud:ov --template your_controller/blank

这应该将CRUD blank.html模板复制到<应用程序中的code> views / your_controller / blank.html 。打开该文件，查找＃{crud.form /} 标记，并在其下面添加以下代码：

This should copy the CRUD blank.html template to views/your_controller/blank.html in your application. Open that file, look for the #{crud.form /} tag, and add the following code below it:

<div class="crudField crud_password">
    <label for="object_password">&{'label.password'}</label>
    <input id="object_password" type="password" name="object.password" value="" />
    <span class="crudHelp"></span>
</div>

现在，密码字段应显示在其他表单字段之后。

The password field should now appear after your other form fields.

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