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Java实战项目 文章目录Java实战项目一、开发介绍1.1 开发环境二、系统介绍2.1图片展示三、部分代码设计3.1.部分代码如下： 一、开发介绍 1.1 开发环境 开发语言：Java数据库：MySQL系统架构：B/S后端：SSM(Spring+SpringMVC+Mybatis)前端：Vue工具：IDEA或者Eclipse、JDK1.8、Maven 二、系统介绍 2.1图片展示 登录模块：
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三、部分代码设计 3.1.部分代码如下： 分页插件代码package com.utils;import java.io.Serializable;import java.util.List;import java.util.Map;import com.baomidou.mybatisplus.plugins.Page;/** * 分页工具类 */public class PageUtils implements Serializable { private static final long serialVersionUID = 1L; //总记录数 private long total; //每页记录数 private int pageSize; //总页数 private long totalPage; //当前页数 private int currPage; //列表数据 private List list;/*** 分页* @param list列表数据* @param totalCount 总记录数* @param pageSize每页记录数* @param currPage当前页数*/ public PageUtils(List list, int totalCount, int pageSize, int currPage) {this.list = list;this.total = totalCount;this.pageSize = pageSize;this.currPage = currPage;this.totalPage = (int)Math.ceil((double)totalCount/pageSize); } /*** 分页*/ public PageUtils(Page page) {this.list = page.getRecords();this.total = page.getTotal();this.pageSize = page.getSize();this.currPage = page.getCurrent();this.totalPage = page.getPages(); }/** 空数据的分页*/ public PageUtils(Map params) { Page page =new Query(params).getPage();new PageUtils(page); } var vue = new Vue({el: '#app',data: {menu: menu,roles: []},created(){for(let item in this.menu) {if(this.menu[item].hasFrontLogin=='是') {this.roles.push(this.menu[item]);}}},methods: {jump(url) {jump(url)}}})layui.use(['layer', 'element', 'carousel', 'form', 'http', 'jquery'], function() {var layer = layui.layer;var element = layui.element;var carousel = layui.carousel;var form = layui.form;var http = layui.http;var jquery = layui.jquery;function randomString() {var len = 4;var chars = [ 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9']var colors = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f']var sizes = ['14', '15', '16', '17', '18']var output = []for (var i = 0; i 0) wrapper.and();Map.Entry entry = it.next();String key = entry.getKey();String value = (String) entry.getValue();wrapper.like(key, value);i++;}return wrapper;}public static Wrapper likeOrEq(Wrapper wrapper,Object bean) { Map result = BeanUtil.beanToMap(bean, true, true);return genLikeOrEq(wrapper,result);}public static Wrapper genLikeOrEq( Wrapper wrapper,Map param) {Iterator it = param.entrySet().iterator();int i=0;while (it.hasNext()) {if(i>0) wrapper.and();Map.Entry entry = it.next();String key = entry.getKey();if(entry.getValue().toString().contains("%")) {wrapper.like(key, entry.getValue().toString().replace("%", ""));} else {wrapper.eq(key, entry.getValue());}i++;}return wrapper;}public static Wrapper allEq(Wrapper wrapper,Object bean) { Map result = BeanUtil.beanToMap(bean, true, true);return genEq(wrapper,result);}public static Wrapper genEq( Wrapper wrapper,Map param) {Iterator it = param.entrySet().iterator();int i=0;while (it.hasNext()) {if(i>0) wrapper.and();Map.Entry entry = it.next();String key = entry.getKey();wrapper.eq(key, entry.getValue());i++;}return wrapper;}public static Wrapper between(Wrapper wrapper,Map params) {for(String key : params.keySet()) {String columnName = "";if(key.endsWith("_start")) {columnName = key.substring(0, key.indexOf("_start"));if(StringUtils.isNotBlank(params.get(key).toString())) {wrapper.ge(columnName, params.get(key));}}if(key.endsWith("_end")) {columnName = key.substring(0, key.indexOf("_end"));if(StringUtils.isNotBlank(params.get(key).toString())) {wrapper.le(columnName, params.get(key));}}}return wrapper;}public static Wrapper sort(Wrapper wrapper,Map params) {String order = "";if(params.get("order") != null && StringUtils.isNotBlank(params.get("order").toString())) {order = params.get("order").toString();}if(params.get("sort") != null && StringUtils.isNotBlank(params.get("sort").toString())) {if(order.equalsIgnoreCase("desc")) {wrapper.orderDesc(Arrays.asList(params.get("sort")));} else {wrapper.orderAsc(Arrays.asList(params.get("sort")));}}return wrapper;}/** * 驼峰格式字符串转换为下划线格式字符串 * * @param param * @return */public static String camelToUnderline(String param) {if (param == null || "".equals(param.trim())) {return "";}int len = param.length();StringBuilder sb = new StringBuilder(len);for (int i = 0; i