获取 .model.json 作为字符串 [英] Get .model.json as String

问题描述

我想知道是否有一种简单的方法可以在 AEM 中获取带有吊索内容导出器结果的字符串.在我当前的用例中，我需要组件的 htl 文件中组件的 .model.json 输出的内容，并且发送额外的请求显然不是一个好主意.关于如何获取数据的任何提示?

I wonder if there is an easy way to get a String with the result of a sling content exporter in AEM. In my current usecase I need the content of a component's .model.json output in the component's htl file and sending an additional request is obviously not a good idea. Any hints on how I can get the data?

推荐答案

经过一些阅读和实验，我找到了一种方法:

After some reading and experimenting, I found a way to do it:

在你的 pom 中添加对以下包的依赖:

Add a dependency to the following package in your pom:

    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.9.5</version>
    </dependency>

然后在您的模型中创建一个执行序列化的方法:

Then create a method in your model that does the serialization:

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;

public String getJson() {
    ObjectMapper objectMapper = new ObjectMapper();
    String tStr = "";
    try {
        tStr = objectMapper.writeValueAsString(this);
        logger.error(tStr);
    }
    catch (JsonProcessingException ex) {
        logger.error("Cannot do it: {}", ex.getMessage());
    }
    return tStr;
}

现在您可以从 HTL 脚本或任何其他可以访问模型的代码片段中调用此方法.

Now you can call this method from inside a HTL script or any other code fragment that has access to the model.

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