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What is Thymeleaf
Thymeleaf is a Java template engine that can be applied to both web projects and non-web project servers. It has the characteristics of dynamic and static combination, multi-expression support, and springboot support. Today's main purpose is to explain its expression. type of thing.
It provides a total of four expressions.
1. ${} expression
${} This can directly get the property value of the Model string, and can also get the properties of the object. You can also use . to represent the relationship of attributes.
See an example:
<div>
<p th:text="${emp.name}">
</div>
This means the name attribute of emp
Two, *{} expression
It's another simplification
<div th:object="${emp}">
<p th:text="*{name}">
</div>
You can see this example, th:object specifies the object,
and *{} can directly refer to the properties of the object, which can be optimized to some extent.
3. @{} expression
The function of this expression is to splice the path, and you will be familiar with it after reading the example.
<a th:href="@{/index}">点击</a>
<a th:href="/index">点击</a>
The effect is the same as jumping to the index, but if it is packaged into a war package, the @{} expression will add the project name to the URL, which is what you need to pay attention to.
<a th:href="@{/index(userId=1)}">点击</a>
<a th:href="/index?userId=1">点击</a>
The effect is the same, both represent a parameter with userId=1.
There is also splicing for multiple parameters, you can see the difference between using @{} and not using @{}:
<a th:href="@{/index(userId=1，age=20)}">点击</a>
<a th:href="/index?userId=1&age=20">点击</a>
It can be seen that there is a big difference between the two
4. #{} expression
This is basically not used, it is said to be used to read the properties of the internationalized properties file
Summarize
This is an essay, recording what I want to understand, and I hope it can help people who see it.
