問題 name為null時<p>hello<p>還顯示嗎？
<div th:text="{$name}">
<p>hello</p>
</div>

th:text th:utext 不對tag標籤轉意

${} 使用上下文中的變數 #{} 存放在配置檔案中的變數

  <p th:text="#{home.welcome}">Welcome to our grocery store!</p>

基本語法

First, let’s see a quick summary of the Standard Expression features:

Simple expressions:
Variable Expressions: ${...}
Selection Variable Expressions: *{...}
Message Expressions: #{...}
Link URL Expressions: @{...}
Literals
Text literals: 'one text', 'Another one!',…
Number literals: 0, 34, 3.0, 12.3,…
Boolean literals: true, false
Null literal: null
Literal tokens: one, sometext, main,…
Text operations:
String concatenation: +
Literal substitutions: |The name is ${name}|
Arithmetic operations:
Binary operators: +, -, *, /, %
Minus sign (unary operator): -
Boolean operations:
Binary operators: and, or
Boolean negation (unary operator): !, not
Comparisons and equality:
Comparators: >, <, >=, <= (gt, lt, ge, le)
Equality operators: ==, != (eq, ne)
Conditional operators:
If-then: (if) ? (then)
If-then-else: (if) ? (then) : (else)
Default: (value) ?: (defaultvalue)