From 3b69a17c0a3ac899ca2d9fbe998fc8a265121feb Mon Sep 17 00:00:00 2001 From: GPU is all you need <2778335106@qq.com> Date: Tue, 19 Apr 2022 23:13:48 +0800 Subject: [PATCH] =?UTF-8?q?2022/3/21=20copy=E8=87=AARuoYi-vue-plusV4.0.1?= =?UTF-8?q?=E4=B8=80=E4=BA=9B=E5=B7=A5=E5=85=B7=E7=B1=BB?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../award/common/util/spring/SpringUtils.java | 65 +++++ .../ncst/award/exception/UtilException.java | 22 ++ .../edu/ncst/award/utils/StringUtils.java | 273 ++++++++++++++++++ .../edu/ncst/award/utils/sql/SqlUtil.java | 57 ++++ .../ncst/award/vo/param/query/PageQuery.java | 92 ++++++ 5 files changed, 509 insertions(+) create mode 100644 awardBE/src/main/java/edu/ncst/award/common/util/spring/SpringUtils.java create mode 100644 awardBE/src/main/java/edu/ncst/award/exception/UtilException.java create mode 100644 awardBE/src/main/java/edu/ncst/award/utils/StringUtils.java create mode 100644 awardBE/src/main/java/edu/ncst/award/utils/sql/SqlUtil.java create mode 100644 awardBE/src/main/java/edu/ncst/award/vo/param/query/PageQuery.java diff --git a/awardBE/src/main/java/edu/ncst/award/common/util/spring/SpringUtils.java b/awardBE/src/main/java/edu/ncst/award/common/util/spring/SpringUtils.java new file mode 100644 index 0000000..ce5f4ad --- /dev/null +++ b/awardBE/src/main/java/edu/ncst/award/common/util/spring/SpringUtils.java @@ -0,0 +1,65 @@ +package edu.ncst.award.common.util.spring; + +import cn.hutool.extra.spring.SpringUtil; +import org.springframework.aop.framework.AopContext; +import org.springframework.beans.factory.NoSuchBeanDefinitionException; +import org.springframework.stereotype.Component; + +/** + * spring工具类 + * + * @author Lion Li + */ +@Component +public final class SpringUtils extends SpringUtil { + + /** + * 如果BeanFactory包含一个与所给名称匹配的bean定义,则返回true + * + * @param name + * @return boolean + */ + public static boolean containsBean(String name) { + return getBeanFactory().containsBean(name); + } + + /** + * 判断以给定名字注册的bean定义是一个singleton还是一个prototype。 + * 如果与给定名字相应的bean定义没有被找到,将会抛出一个异常(NoSuchBeanDefinitionException) + * + * @param name + * @return boolean + */ + public static boolean isSingleton(String name) throws NoSuchBeanDefinitionException { + return getBeanFactory().isSingleton(name); + } + + /** + * @param name + * @return Class 注册对象的类型 + */ + public static Class getType(String name) throws NoSuchBeanDefinitionException { + return getBeanFactory().getType(name); + } + + /** + * 如果给定的bean名字在bean定义中有别名,则返回这些别名 + * + * @param name + */ + public static String[] getAliases(String name) throws NoSuchBeanDefinitionException { + return getBeanFactory().getAliases(name); + } + + /** + * 获取aop代理对象 + * + * @param invoker + * @return + */ + @SuppressWarnings("unchecked") + public static T getAopProxy(T invoker) { + return (T) AopContext.currentProxy(); + } + +} diff --git a/awardBE/src/main/java/edu/ncst/award/exception/UtilException.java b/awardBE/src/main/java/edu/ncst/award/exception/UtilException.java new file mode 100644 index 0000000..96cf48f --- /dev/null +++ b/awardBE/src/main/java/edu/ncst/award/exception/UtilException.java @@ -0,0 +1,22 @@ +package edu.ncst.award.exception; + +/** + * 工具类异常 + * + * @author ruoyi + */ +public class UtilException extends RuntimeException { + private static final long serialVersionUID = 8247610319171014183L; + + public UtilException(Throwable e) { + super(e.getMessage(), e); + } + + public UtilException(String message) { + super(message); + } + + public UtilException(String message, Throwable throwable) { + super(message, throwable); + } +} diff --git a/awardBE/src/main/java/edu/ncst/award/utils/StringUtils.java b/awardBE/src/main/java/edu/ncst/award/utils/StringUtils.java new file mode 100644 index 0000000..4b5407f --- /dev/null +++ b/awardBE/src/main/java/edu/ncst/award/utils/StringUtils.java @@ -0,0 +1,273 @@ +package edu.ncst.award.utils; + +import cn.hutool.core.collection.CollUtil; +import cn.hutool.core.lang.Validator; +import cn.hutool.core.util.StrUtil; +import lombok.AccessLevel; +import lombok.NoArgsConstructor; +import org.springframework.util.AntPathMatcher; + +import java.util.ArrayList; +import java.util.HashSet; +import java.util.List; +import java.util.Set; + +/** + * 字符串工具类 + * + * @author Lion Li + */ +@NoArgsConstructor(access = AccessLevel.PRIVATE) +public class StringUtils extends org.apache.commons.lang3.StringUtils { + + /** + * 获取参数不为空值 + * + * @param str defaultValue 要判断的value + * @return value 返回值 + */ + public static String blankToDefault(String str, String defaultValue) { + return StrUtil.blankToDefault(str, defaultValue); + } + + /** + * * 判断一个字符串是否为空串 + * + * @param str String + * @return true:为空 false:非空 + */ + public static boolean isEmpty(String str) { + return StrUtil.isEmpty(str); + } + + /** + * * 判断一个字符串是否为非空串 + * + * @param str String + * @return true:非空串 false:空串 + */ + public static boolean isNotEmpty(String str) { + return !isEmpty(str); + } + + /** + * 去空格 + */ + public static String trim(String str) { + return StrUtil.trim(str); + } + + /** + * 截取字符串 + * + * @param str 字符串 + * @param start 开始 + * @return 结果 + */ + public static String substring(final String str, int start) { + return substring(str, start, str.length()); + } + + /** + * 截取字符串 + * + * @param str 字符串 + * @param start 开始 + * @param end 结束 + * @return 结果 + */ + public static String substring(final String str, int start, int end) { + return StrUtil.sub(str, start, end); + } + + /** + * 格式化文本, {} 表示占位符
+ * 此方法只是简单将占位符 {} 按照顺序替换为参数
+ * 如果想输出 {} 使用 \\转义 { 即可,如果想输出 {} 之前的 \ 使用双转义符 \\\\ 即可
+ * 例:
+ * 通常使用:format("this is {} for {}", "a", "b") -> this is a for b
+ * 转义{}: format("this is \\{} for {}", "a", "b") -> this is {} for a
+ * 转义\: format("this is \\\\{} for {}", "a", "b") -> this is \a for b
+ * + * @param template 文本模板,被替换的部分用 {} 表示 + * @param params 参数值 + * @return 格式化后的文本 + */ + public static String format(String template, Object... params) { + return StrUtil.format(template, params); + } + + /** + * 是否为http(s)://开头 + * + * @param link 链接 + * @return 结果 + */ + public static boolean ishttp(String link) { + return Validator.isUrl(link); + } + + /** + * 字符串转set + * + * @param str 字符串 + * @param sep 分隔符 + * @return set集合 + */ + public static Set str2Set(String str, String sep) { + return new HashSet<>(str2List(str, sep, true, false)); + } + + /** + * 字符串转list + * + * @param str 字符串 + * @param sep 分隔符 + * @param filterBlank 过滤纯空白 + * @param trim 去掉首尾空白 + * @return list集合 + */ + public static List str2List(String str, String sep, boolean filterBlank, boolean trim) { + List list = new ArrayList<>(); + if (isEmpty(str)) { + return list; + } + + // 过滤空白字符串 + if (filterBlank && isBlank(str)) { + return list; + } + String[] split = str.split(sep); + for (String string : split) { + if (filterBlank && isBlank(string)) { + continue; + } + if (trim) { + string = trim(string); + } + list.add(string); + } + + return list; + } + + /** + * 查找指定字符串是否包含指定字符串列表中的任意一个字符串同时串忽略大小写 + * + * @param cs 指定字符串 + * @param searchCharSequences 需要检查的字符串数组 + * @return 是否包含任意一个字符串 + */ + public static boolean containsAnyIgnoreCase(CharSequence cs, CharSequence... searchCharSequences) { + return StrUtil.containsAnyIgnoreCase(cs, searchCharSequences); + } + + /** + * 驼峰转下划线命名 + */ + public static String toUnderScoreCase(String str) { + return StrUtil.toUnderlineCase(str); + } + + /** + * 是否包含字符串 + * + * @param str 验证字符串 + * @param strs 字符串组 + * @return 包含返回true + */ + public static boolean inStringIgnoreCase(String str, String... strs) { + return StrUtil.equalsAnyIgnoreCase(str, strs); + } + + /** + * 将下划线大写方式命名的字符串转换为驼峰式。如果转换前的下划线大写方式命名的字符串为空,则返回空字符串。 例如:HELLO_WORLD->HelloWorld + * + * @param name 转换前的下划线大写方式命名的字符串 + * @return 转换后的驼峰式命名的字符串 + */ + public static String convertToCamelCase(String name) { + return StrUtil.upperFirst(StrUtil.toCamelCase(name)); + } + + /** + * 驼峰式命名法 例如:user_name->userName + */ + public static String toCamelCase(String s) { + return StrUtil.toCamelCase(s); + } + + /** + * 查找指定字符串是否匹配指定字符串列表中的任意一个字符串 + * + * @param str 指定字符串 + * @param strs 需要检查的字符串数组 + * @return 是否匹配 + */ + public static boolean matches(String str, List strs) { + if (isEmpty(str) || CollUtil.isEmpty(strs)) { + return false; + } + for (String pattern : strs) { + if (isMatch(pattern, str)) { + return true; + } + } + return false; + } + + /** + * 判断url是否与规则配置: + * ? 表示单个字符; + * * 表示一层路径内的任意字符串,不可跨层级; + * ** 表示任意层路径; + * + * @param pattern 匹配规则 + * @param url 需要匹配的url + * @return + */ + public static boolean isMatch(String pattern, String url) { + AntPathMatcher matcher = new AntPathMatcher(); + return matcher.match(pattern, url); + } + + /** + * 数字左边补齐0,使之达到指定长度。注意,如果数字转换为字符串后,长度大于size,则只保留 最后size个字符。 + * + * @param num 数字对象 + * @param size 字符串指定长度 + * @return 返回数字的字符串格式,该字符串为指定长度。 + */ + public static final String padl(final Number num, final int size) { + return padl(num.toString(), size, '0'); + } + + /** + * 字符串左补齐。如果原始字符串s长度大于size,则只保留最后size个字符。 + * + * @param s 原始字符串 + * @param size 字符串指定长度 + * @param c 用于补齐的字符 + * @return 返回指定长度的字符串,由原字符串左补齐或截取得到。 + */ + public static final String padl(final String s, final int size, final char c) { + final StringBuilder sb = new StringBuilder(size); + if (s != null) { + final int len = s.length(); + if (s.length() <= size) { + for (int i = size - len; i > 0; i--) { + sb.append(c); + } + sb.append(s); + } else { + return s.substring(len - size, len); + } + } else { + for (int i = size; i > 0; i--) { + sb.append(c); + } + } + return sb.toString(); + } + +} diff --git a/awardBE/src/main/java/edu/ncst/award/utils/sql/SqlUtil.java b/awardBE/src/main/java/edu/ncst/award/utils/sql/SqlUtil.java new file mode 100644 index 0000000..2d2b772 --- /dev/null +++ b/awardBE/src/main/java/edu/ncst/award/utils/sql/SqlUtil.java @@ -0,0 +1,57 @@ +package edu.ncst.award.utils.sql; + +import edu.ncst.award.exception.UtilException; +import edu.ncst.award.utils.StringUtils; +import lombok.AccessLevel; +import lombok.NoArgsConstructor; + +/** + * sql操作工具类 + * + * @author ruoyi + */ +@NoArgsConstructor(access = AccessLevel.PRIVATE) +public class SqlUtil { + + /** + * 定义常用的 sql关键字 + */ + public static final String SQL_REGEX = "select |insert |delete |update |drop |count |exec |chr |mid |master |truncate |char |and |declare "; + + /** + * 仅支持字母、数字、下划线、空格、逗号、小数点(支持多个字段排序) + */ + public static final String SQL_PATTERN = "[a-zA-Z0-9_\\ \\,\\.]+"; + + /** + * 检查字符,防止注入绕过 + */ + public static String escapeOrderBySql(String value) { + if (StringUtils.isNotEmpty(value) && !isValidOrderBySql(value)) { + throw new UtilException("参数不符合规范,不能进行查询"); + } + return value; + } + + /** + * 验证 order by 语法是否符合规范 + */ + public static boolean isValidOrderBySql(String value) { + return value.matches(SQL_PATTERN); + } + + /** + * SQL关键字检查 + */ + public static void filterKeyword(String value) { + if (StringUtils.isEmpty(value)) { + return; + } + String[] sqlKeywords = StringUtils.split(SQL_REGEX, "\\|"); + for (String sqlKeyword : sqlKeywords) { + if (StringUtils.indexOfIgnoreCase(value, sqlKeyword) > -1) { + throw new UtilException("参数存在SQL注入风险"); + } + } + } +} diff --git a/awardBE/src/main/java/edu/ncst/award/vo/param/query/PageQuery.java b/awardBE/src/main/java/edu/ncst/award/vo/param/query/PageQuery.java new file mode 100644 index 0000000..ef737a8 --- /dev/null +++ b/awardBE/src/main/java/edu/ncst/award/vo/param/query/PageQuery.java @@ -0,0 +1,92 @@ +package edu.ncst.award.vo.param.query; + +import cn.hutool.core.util.ObjectUtil; +import com.baomidou.mybatisplus.core.metadata.OrderItem; +import com.baomidou.mybatisplus.extension.plugins.pagination.Page; + +import edu.ncst.award.utils.StringUtils; +import edu.ncst.award.utils.sql.SqlUtil; +import io.swagger.annotations.ApiModelProperty; +import lombok.Data; + +import java.io.Serializable; + +/** + * 分页查询实体类 + * + * @author Lion Li + */ + +@Data +public class PageQuery implements Serializable { + + private static final long serialVersionUID = 1L; + + /** + * 分页大小 + */ + @ApiModelProperty("分页大小") + private Integer pageSize; + + /** + * 当前页数 + */ + @ApiModelProperty("当前页数") + private Integer pageNum; + + /** + * 排序列 + */ + @ApiModelProperty("排序列") + private String orderByColumn; + + /** + * 排序的方向desc或者asc + */ + @ApiModelProperty(value = "排序的方向", example = "asc,desc") + private String isAsc; + + /** + * 当前记录起始索引 默认值 + */ + public static final int DEFAULT_PAGE_NUM = 1; + + /** + * 每页显示记录数 默认值 默认查全部 + */ + public static final int DEFAULT_PAGE_SIZE = Integer.MAX_VALUE; + + public Page build() { + Integer pageNum = ObjectUtil.defaultIfNull(getPageNum(), DEFAULT_PAGE_NUM); + Integer pageSize = ObjectUtil.defaultIfNull(getPageSize(), DEFAULT_PAGE_SIZE); + if (pageNum <= 0) { + pageNum = DEFAULT_PAGE_NUM; + } + Page page = new Page<>(pageNum, pageSize); + OrderItem orderItem = buildOrderItem(); + if (ObjectUtil.isNotNull(orderItem)) { + page.addOrder(orderItem); + } + return page; + } + + private OrderItem buildOrderItem() { + // 兼容前端排序类型 + if ("ascending".equals(isAsc)) { + isAsc = "asc"; + } else if ("descending".equals(isAsc)) { + isAsc = "desc"; + } + if (StringUtils.isNotBlank(orderByColumn)) { + String orderBy = SqlUtil.escapeOrderBySql(orderByColumn); + orderBy = StringUtils.toUnderScoreCase(orderBy); + if ("asc".equals(isAsc)) { + return OrderItem.asc(orderBy); + } else if ("desc".equals(isAsc)) { + return OrderItem.desc(orderBy); + } + } + return null; + } + +}