{"fragment":true,"name":"_routing","value":"15172324872","values":["15172324872"]},这个字符串,获取value的值代码样例
时间: 2023-09-18 18:11:13 浏览: 49
要获取{"fragment":true,"name":"_routing","value":"15172324872","values":["15172324872"]}中value的值,可以使用以下代码样例:
```
String value = null;
// 使用JSON解析库解析字符串
JSONObject jsonObject = new JSONObject("{\"fragment\":true,\"name\":\"_routing\",\"value\":\"15172324872\",\"values\":[\"15172324872\"]}");
// 获取value的值
if (jsonObject.has("value")) {
value = jsonObject.getString("value");
}
// 打印value的值
System.out.println("value的值为:" + value);
```
这段代码将会输出:value的值为:15172324872。它使用了JSON解析库来解析字符串,并通过`getString()`方法获取了value的值。
相关问题
th:fragment="used_tags(title, usedTags)"
这个代码片段使用了 `th:fragment` 属性来定义一个片段,片段的名称是 "used_tags",并且它有两个参数:`title` 和 `usedTags`。
`th:fragment` 是 Thymeleaf 模板引擎的一个指令,它用于定义一个可重用的片段。通过定义片段,我们可以在模板中多次引用该片段,并且可以传递参数给片段进行定制化。
在这个例子中,`used_tags` 片段被定义为一个带有两个参数的片段。当我们在模板中引用这个片段时,可以传递 `title` 和 `usedTags` 的值给它。这样,我们可以在整个模板中多次使用这个片段,并根据不同的上下文传递不同的参数值。
Cannot resolve androidx.fragment:fragment:1.0.0
As an AI language model, I cannot provide a specific solution without more context. However, here are some general steps you can take to try and resolve the issue:
1. Check your project's build.gradle file and make sure that the androidx.fragment:fragment dependency is included in the dependencies block. If it is not there, add it:
```
dependencies {
implementation 'androidx.fragment:fragment:1.0.0'
// Other dependencies
}
```
2. Make sure you are using the correct version of the dependency. If 1.0.0 is not the correct version, try updating it to the correct version.
3. Check your internet connection and make sure that you are able to connect to the repositories where the dependency is hosted.
4. Try cleaning and rebuilding your project, as sometimes this can help resolve dependency issues.
5. If none of the above steps work, try searching online for similar issues or posting a question on a developer forum for assistance.