分页查询controller写法

public PageResult findByList(@RequestBody UserDTO userDTO) {// 分页IPage<User> page = new Page(UserDTO.getPageNumber(), UserDTO.getPageSize());// 条件构造器QueryWrapper queryWrapper = new QueryWrapper();queryWrapper.eq("user_name", userDTO.getUserName);// 查询符合条件的内容IPage<User> pageResult = service.page(page, queryWrapper);// 获取符合条件的List集合List<User> records = pageResult.getRecords();System.out.println("查询结果 = " + records);// 返回结果return new PageResult(new Long(pageResult.getTotal()).intValue(), pageResult.getRecords());
}

返回结果集写法

可根据需求自定义

/*** 分页处理*/
@ApiModel("分页响应类")
public class PageResult<T> {@ApiModelProperty(value ="响应代码")private int code;@ApiModelProperty(value ="提示信息")private String msg;@ApiModelProperty(value ="总记录数")private int count;@ApiModelProperty(value ="查询到的结果集")private List<T> data;/*** 默认构造方法*/public PageResult() {}public PageResult(int total, List<T> rows) {this.count = total;this.data = rows;this.code = 200;this.msg = Constant.ResponseMsg.OPERATE_SUCCESS;}public int getCode() {return code;}public void setCode(int code) {this.code = code;}public String getMsg() {return msg;}public void setMsg(String msg) {this.msg = msg;}public int getCount() {return count;}public void setCount(int count) {this.count = count;}public List<T> getData() {return data;}public void setData(List<T> data) {this.data = data;}
}