Question

我是REST API的新手，正在开发Get请求。以前，我是通过简单的get请求发送所有对象的。现在，我也已经实现了分页功能，因为目前的目标是让后端api正常工作，并且它们将逐步实现分页功能，否则它们需要做很多更改。

上一个api是{{base_url}}/api/leads/new

具有分页功能{{base_url}}/api/leads/new?pageNumber=1&pageSize=10

下面是代码段。

目标是允许用户跳过pageNumber和pageSize属性及其键。

以便他们以前的api继续起作用。

@RequestMapping(value = "/new", method = RequestMethod.GET, params = { "pageNumber", "pageSize" } )
public @ResponseBody ResponseEntity getNewLeadsDetails(@RequestParam(value = "pageNumber" , required = false, defaultValue = "0") int pageNumber ,@RequestParam(value = "pageSize", required = false,  defaultValue = "10") int pageSize,Authentication authentication,
        HttpServletRequest httpServletRequest) { 
    return leadService.getNewLeads(pageNumber,pageSize,authentication);
}

Answer 1

您可以使用如下所示的默认分页

@RequestMapping(value = "/new", method = RequestMethod.GET)
public @ResponseBody ResponseEntity getNewLeadsDetails(Pageable pageable, Authentication authentication,
    HttpServletRequest httpServletRequest) { 
  if(null == pageable) {
      return leadService.getNewLeads(authentication);
  } else {
      return leadService.getNewLeads(pageable.getPageNumber(),pageable.getSize(),authentication);
  }
}

只需更改请求url，然后从pageNumber替换为page，将pageSize替换为size。

Answer 2

@RequestMapping(value = "/new", method = RequestMethod.GET, params = { "pageNumber", "pageSize" } )
public @ResponseBody ResponseEntity getNewLeadsDetails(@RequestParam(value = "pageNumber" , required = false) Integer pageNumber ,@RequestParam(value = "pageSize", required = false) Integer pageSize, Authentication authentication,
        HttpServletRequest httpServletRequest) { 
    if(null == pageSize || null == pageNumber) {
        return leadService.getNewLeads(authentication);
    } else {
        return leadService.getNewLeads(pageNumber,pageSize,authentication);
    }
}

您的服务确实允许两者，如果未设置则不要使用分页。

如何在Springboot中跳过获取请求中的分页属性

2 个答案: