@Component

public?class?RoleDirectiveModel?implements?TemplateDirectiveModel?{

/**

*

*?@param?environment?環境變量

*?@param?params?指令參數(存儲你所需要的值，隨便是什么Key-Value你懂的)

*?@param?loopVars?循環變量?返回值

*?@param?templateDirectiveBody?指令內容

*?除了params外，其他的都能是Null。

*?@throws?TemplateException

*?@throws?IOException

*/

@Override

public?void?execute(Environment?environment,?Map?params,?TemplateModel[]?loopVars,?TemplateDirectiveBody?templateDirectiveBody)?throws?TemplateException,?IOException?{

System.out.println("=========");

TemplateScalarModel?user=(TemplateScalarModel)params.get("user");

TemplateScalarModel?role=(TemplateScalarModel)params.get("role");

if("123456".equals(user.getAsString())?&&?"admin".equals(role.getAsString())?){

loopVars[0]=TemplateBooleanModel.TRUE;

}

List?otherRights=new?ArrayList<>();

otherRights.add("add");

otherRights.add("update");

otherRights.add("delete");

loopVars[1]=new?SimpleSequence(otherRights);

templateDirectiveBody.render(environment.getOut());

}

}

這是自定義指令的定義類

這是加載自定義指令的freemarker?java配置類import?com.example.demo.model.tag.RoleDirectiveModel;

import?com.example.demo.model.tag.SortMethod;

import?freemarker.template.TemplateModelException;

import?lombok.extern.slf4j.Slf4j;

import?org.springframework.beans.factory.annotation.Autowired;

import?org.springframework.context.annotation.Configuration;

import?javax.annotation.PostConstruct;

@Slf4j

@Configuration

public?class?FreeMarkerAutoConfiguration?{

@Autowired

private?freemarker.template.Configuration?configuration;

@Autowired

private?RoleDirectiveModel?roleDirectiveModel;

@Autowired

private?SortMethod?sortMethod;

@PostConstruct

public?void?setSharedVariable()?{

try?{

//自定義標簽

configuration.setSharedVariable("role",?roleDirectiveModel);

configuration.setSharedVariable("sort_int",sortMethod);

}?catch?(Exception?e)?{

log.error("Custom?tags?failed?to?load：{}",?e.getMessage());

}

}

}

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