【Java从零到架构师第③季】【45】SpringBoot-Freemarker_java

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【Java从零到架构师第③季】【45】SpringBoot-Freemarker

- 页面模板
- Freemarker
- Freemarker—HelloWorld
- Freemarker—生成Mapper.java
- Freemarker—注释
- 集成到SpringBoot
- 参考

页面模板

Freemarker

http://freemarker.foofun.cn/

Freemarker—HelloWorld

<dependency>
    <groupId>org.freemarkergroupId>
    <artifactId>freemarkerartifactId>
    <version>2.3.29version>
dependency>

mapper.ftl：

<html>
<head>
    <title>titletitle>
head>
<body>
<h2>${name}h2>
<h3>${age}h3>
body>
html>

    public static void main(String[] args) throws Exception {
        final String basePath = "D:/code_space/LearnJava/IntellijIdea/LearnJavaEEWithXMGLMJ/StepTHREE/SpringBoot-Freemarker/";
        Configuration cfg = new Configuration(Configuration.VERSION_2_3_23);
        cfg.setDefaultEncoding("UTF-8");
        cfg.setDirectoryForTemplateLoading(new File(basePath + "templates"));
        Template tpl = cfg.getTemplate("mapper.ftl");
        Map<String, Object> data = new HashMap<>();
        data.put("name", "lp");
        data.put("age", 10);
        try (FileWriter out = new FileWriter(new File(basePath + "src/main/resources/static/index.html"))) {
            tpl.process(data, out);
        }
    }

Freemarker—生成Mapper.java

mapper.ftl：

package programmer.lp.fm.mapper;

import programmer.lp.fm.pojo.po.${type};

public interface ${type}Mapper extends BaseMapper<${type}> {

}

Main.main()：

    public static void main(String[] args) throws Exception {
        final String basePath = "D:/code_space/LearnJava/IntellijIdea/LearnJavaEEWithXMGLMJ/StepTHREE/SpringBoot-Freemarker/";

        Configuration cfg = new Configuration(Configuration.VERSION_2_3_23);
        // 设置编码
        cfg.setDefaultEncoding("UTF-8");
        // 模板文件的存放目录
        cfg.setDirectoryForTemplateLoading(new File(basePath + "templates"));

        // 获取模板文件
        Template tpl = cfg.getTemplate("mapper.ftl");

        // 数据
        Map<String, Object> data = new HashMap<>();
        final String className = "DictItem";
        data.put("type", className);

        try (FileWriter out = new FileWriter(new File(basePath + "src/main/java/programmer/lp/fm/mapper/" + className + "Mapper.java"))) {
            tpl.process(data, out);
        }
    }

Freemarker—注释

集成到SpringBoot

pom.xml：


<dependency>
    <groupId>org.springframework.bootgroupId>
    <artifactId>spring-boot-starter-freemarkerartifactId>
dependency>

application.yml：

@Controller
@RequestMapping("/dictTypes")
public class DictTypeController {
    @Autowired
    private DictTypeService service;

    @GetMapping("/list")
    public String list(Model model) {
        final List<DictType> list = service.list();
        model.addAttribute("data", list);
        return "pages/dictType";
    }
}

resources/templates/pages/dictType.ftlh：

<#assign ctx="${springMacroRequestContext.getContextPath()}">



<script src="${ctx}/assets/libs/jquery/jquery.min.js">script>

<script src="${ctx}/assets/libs/popper/popper.min.js">script>



<#list data as item>
    <tr>
        
        <td>${item.name}td>
        <td>${item.value}td>
        
        <td>${item.intro!}td>
        
        
    tr>
#list>