1.springboot 中自帶的頁(yè)面渲染工具為thymeleaf 還有freemarker 這兩種模板引擎 簡(jiǎn)單比較下兩者不同

1.1freemaker 優(yōu)點(diǎn)

freemarker 不足：thymeleaf由于使用了標(biāo)簽屬性做為語(yǔ)法，模版頁(yè)面直接用瀏覽器渲染，使得前端和后端可以并行開(kāi)發(fā)。freemarket使用</>這樣的語(yǔ)法，就無(wú)法直接使瀏覽器渲染出原本頁(yè)面的樣子。

thymeleaf優(yōu)點(diǎn)：

靜態(tài)html嵌入標(biāo)簽屬性，瀏覽器可以直接打開(kāi)模板文件，便于前后端聯(lián)調(diào)。 springboot官方推薦方案。

thymeleaf缺點(diǎn)：

模板必須符合x(chóng)ml規(guī)范 比較下兩者

1.從寫(xiě)code的習(xí)慣角度可能freemarker更習(xí)慣于我們的思維。
2.不過(guò)從前后分離開(kāi)發(fā)的角度看thymeleaf更合適，值的綁定都是基于html的dom元素屬性的，適合前后聯(lián)調(diào)。

還是回歸下主題

開(kāi)始編碼：

1.引入pom依賴

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-freemarker</artifactId>
        </dependency>

2.向yml格式配置文件添加內(nèi)容

spring:
  freemarker:
    request-context-attribute: req  #req訪問(wèn)request
    suffix: .html  #后綴名
    content-type: text/html
    enabled: true
    cache: false #緩存配置
    template-loader-path: classpath:/templates/ #模板加載路徑 按需配置
    charset: UTF-8 #編碼格式
    settings:
      number_format: '0.##'   #數(shù)字格式化，無(wú)小數(shù)點(diǎn)

3.測(cè)試接口如圖

4.index文件位置如圖

index 內(nèi)容

5.啟動(dòng)項(xiàng)目如圖

index頁(yè)面渲染成功

網(wǎng)上收集 propertity的freemarker 配置 （propertity格式配置文件）

 # FREEMARKER (FreeMarkerAutoConfiguration)
spring.freemarker.allow-request-override=false # Set whether HttpServletRequest attributes are allowed to override (hide) controller generated model attributes of the same name.
spring.freemarker.allow-session-override=false # Set whether HttpSession attributes are allowed to override (hide) controller generated model attributes of the same name.
spring.freemarker.cache=false # Enable template caching.
spring.freemarker.charset=UTF-8 # Template encoding.
spring.freemarker.check-template-location=true # Check that the templates location exists.
spring.freemarker.content-type=text/html # Content-Type value.
spring.freemarker.enabled=true # Enable MVC view resolution for this technology.
spring.freemarker.expose-request-attributes=false # Set whether all request attributes should be added to the model prior to merging with the template.
spring.freemarker.expose-session-attributes=false # Set whether all HttpSession attributes should be added to the model prior to merging with the template.
spring.freemarker.expose-spring-macro-helpers=true # Set whether to expose a RequestContext for use by Spring's macro library, under the name "springMacroRequestContext".
spring.freemarker.prefer-file-system-access=true # Prefer file system access for template loading. File system access enables hot detection of template changes.
spring.freemarker.prefix= # Prefix that gets prepended to view names when building a URL.
spring.freemarker.request-context-attribute= # Name of the RequestContext attribute for all views.
spring.freemarker.settings.*= # Well-known FreeMarker keys which will be passed to FreeMarker's Configuration.
spring.freemarker.suffix= # Suffix that gets appended to view names when building a URL.
spring.freemarker.template-loader-path=classpath:/templates/ # Comma-separated list of template paths.
spring.freemarker.view-names= # White list of view names that can be resolved.

另外需要使用thymeleaf 可以使用如下配置（yml 格式配置文件方式）

##視圖模型
spring:
  thymeleaf:
    prefix: classpath:/templates/
    suffix: .html
    cache: false
    encoding: utf-8
    content-type: text/html
    check-template-location: true

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