SpringBoot全局对象数据访问

创建一个测试类，添加@ControllerAdvie和@ModelAttribute注解

package com.model.test;

import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ModelAttribute;

import java.util.ArrayList;
import java.util.List;

/**
 * 全局数据对象访问test
 */

@ControllerAdvice
public class TestDataController {

    @ModelAttribute(value = "test")
    public List<String> dataTest() {
        List<String> list = new ArrayList<>(0);
        list.add("test1");
        list.add("test2");
        list.add("test3");
        return list;
    }
}

获取定义全局对象数据值

package com.model.controller;

import com.its.dangerouschemical.utils.Result;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;
import java.util.Map;

@Api(tags = "全局对象测试")
@RestController
@RequestMapping("/testData)
public class TestDataController {
    /**
     * test
     */
    @ApiOperation("test")
    @GetMapping("getTestData")
    public Result<List<String>> getTestData(@RequestParam int mode, Model model) {
        System.out.println(mode);
        Map<String, Object> map = model.asMap();
        List<String> test = (List<String>) map.get("test");
        return Result.ok(test);
    }
}

结果显示：