如何用freemark根据生成controller和service层

生成各种文件的原理都一样，只要你有模板，都可以生成，下面以一个文件来讲解，其他通用

1.添加maven

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

2. 添加如下代码：

        Configuration cfg = new Configuration();
         cfg.setDefaultEncoding("utf-8");
         Template template = null;
         //加载模板的路径
         cfg.setDirectoryForTemplateLoading(new File(SecurityUtilities.getSystemProperty("user.dir")+File.separator+"src/main/resources/templates"));
         //模板名称获取
         template = cfg.getTemplate("Request2.ftl");

         //模板里的参数
         Map<String, Object> map = new HashMap<>();
         map.put("description","dddd");
         map.put("paramsGenerator","kkkkkk");
         map.put("dataType","666ddd");
         map.put("description","dddd");
         map.put("paramster","dduu");
         map.put("fieldName","ddkk");


        StringWriter result = new StringWriter(); //接收模板和参数渲染后的结果
        template.process(map, result);


        //将结果输出到指定的的路径
        OutputStreamWriter oWriter = new OutputStreamWriter(new FileOutputStream("D:\\data\\b.java"), "utf-8");
        BufferedWriter bufferedWriter = new BufferedWriter(oWriter);
        bufferedWriter.write(result.toString());
        bufferedWriter.close();
        oWriter.close();

 

模板：

 

 内容：

  
  /**
   * ${description}
   */
 @ApiModelProperty(value = "${description}")
private ${paramsGenerator};

public ${dataType} get${fieldName}() {
       return ${paramster};
}
最终输出结果：

 

 

 所以，只要将模板换成一个controller模板，生成的路径改成某个具体的包，就可以生成你要的controller类了