Spring + myBatis +Excel-boot导出文件

配置文件pom.xml引入

        <dependency>
            <groupId>io.github.magic-core</groupId>
            <artifactId>excel-boot</artifactId>
            <version>2.0</version>
        </dependency>

最先定义的参数

/***
 * 姓名
 */
@ExportField(columnName = "姓名")
private String name;

/***
 * 电话
 */
@ExportField(columnName = "电话")
private String mobile;

controller中返回值是void

    @ApiOperation("导出")
    @PostMapping(value = "/exportExcel", produces = "application/json")
    public void exportExcel(@RequestParam String ids,HttpServletResponse httpServletResponse) {
        registerService.exportExcel(ids,httpServletResponse);
    }

//service直接按照官方自己改改就行了很顺利

    @Override
    public void exportExcel(String ids,HttpServletResponse httpServletResponse){
        try {
            ExcelBoot.ExportBuilder(httpServletResponse, "Register", RegisterExcel.class).
                    exportResponse(null, new ExportFunction<RegisterExcel, RegisterExcel>() {
                        @Override
                        public List<RegisterExcel> pageQuery(RegisterExcel registerExcel, int pageNum, int pageSize) {

                            String[] split = ids.split(",");
                            ArrayList<Integer> list = new ArrayList<>();
                            for (String sp : split) {
                                int i = Integer.parseInt(sp);
                                list.add(i);
                            }
                            System.out.println("-----------"+list);
                            List<RegisterExcel> registerExcelList = registerMapper.findRegisterListByIds(list);
                            System.out.println("+++++++"+registerExcelList);
                            return registerExcelList;
                        }

                        @Override
                        public RegisterExcel convert(RegisterExcel registerExcel) {
                            return registerExcel;
                        }
                    });
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

然后就完成了，全部很顺利，但是导出的文件一打开就是文件损坏，然后开始debug开始找问题，找了一下午导入代码、数据、参数的问题，然并卵
最后最后一不小心点想到是不是别的问题，然后找到了。。。

// Swagger 中的produces真是坑了半天
//最开始 produces = "application/json" 然后改成了下面的请求头
@PostMapping(value = "/exportExcel", produces="application/octet-stream")

嗯，下载完美打开。。。