jOne入门

jOne入门

科技前沿 • 2025-02-20 10:30 • 阅读 43

大家好，我是讯享网，很高兴认识大家。

只需在lib中添加jone.jar

web.xml配置核心Filter

 <filter> <filter-name>Router</filter-name> <filter-class>rzy.action.Router</filter-class> </filter> <filter-mapping> <filter-name>Router</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>

讯享网

项目新建action目录，编写action一个POJO

讯享网public class User { public String list() { Map<String, Object> map = XUtil.getParameterMap(); XUtil.calljson("UserService.find", map); return null; } }

新建service目录，编写service一个POJO

讯享网

public class UserService { public Map<String, Object> find(Map<String, Object> map) { int total = 0; List<Map<String, Object>> data = null; Map<String, Object> result = new HashMap<String, Object>(); String sql1 = "select count(*) from users"; String sql2 = "select * from users"; Where where = Where.create(); where.add("id", ">", -1); if (map != null && !map.isEmpty()) { Object username = map.get("username"); Object state = map.get("state"); if (StringUtils.isNotBlank(ObjectUtils.toString(username))) { where.add("username", "like", username.toString().trim()); } if (StringUtils.isNotBlank(ObjectUtils.toString(state))) { where.add("state", "=", state); } } Object scalar = DBUtils.scalar(where.appendTo(sql1)); if (scalar != null) { total = Integer.valueOf(scalar.toString()); } result.put("total", total); if (total > 0) { where.orderby("id desc"); int page = Integer.valueOf(map.get("page").toString()); int pagesize = Integer.valueOf(map.get("pagesize").toString()); int pagecount = (total % pagesize == 0) ? (total / pagesize) : (total / pagesize + 1); if (pagecount > 0) { page = (pagecount < page) ? pagecount : page; } data = DBUtils.pager(where.appendTo(sql2), page, pagesize); result.put("page", page); result.put("data", data); } return result; } }

启动服务器。浏览器输入http://localhost:8080/app/user/list

就可以看到响应的json数据

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