恢复大小写
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-57
@@ -1,57 +0,0 @@
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package com.linke.transport.infrastructure.config;
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import com.linke.transport.infrastructure.util.CamelCaseUtils;
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import org.apache.ibatis.executor.resultset.ResultSetHandler;
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import org.apache.ibatis.plugin.*;
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import org.springframework.stereotype.Component;
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import java.sql.Statement;
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import java.util.List;
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import java.util.Map;
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import java.util.Properties;
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/**
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* MyBatis插件:拦截Map类型结果,转换Key为驼峰
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*/
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@Intercepts({@Signature(
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type = ResultSetHandler.class,
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method = "handleResultSets",
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args = {Statement.class}
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)})
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@Component
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public class CamelCaseMapPlugin implements Interceptor {
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@Override
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public Object intercept(Invocation invocation) throws Throwable {
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// 执行原方法获取结果
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Object result = invocation.proceed();
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// 处理结果:如果是List且元素是Map,转换Key
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if (result instanceof List<?>) {
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List<Map<String, Object>> list = (List<Map<String, Object>>) result;
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for (int i = 0; i < list.size(); i++) {
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Object item = list.get(i);
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if (item instanceof Map<?, ?>) {
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@SuppressWarnings("unchecked")
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Map<String, Object> map = (Map<String, Object>) item;
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// 转换Key为驼峰
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list.set(i, CamelCaseUtils.convertMapKeyToCamel(map));
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}
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}
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}
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return result;
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}
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@Override
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public Object plugin(Object target) {
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// 只拦截ResultSetHandler类型
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if (target instanceof ResultSetHandler) {
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return Plugin.wrap(target, this);
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}
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return target;
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}
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@Override
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public void setProperties(Properties properties) {
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// 可配置参数,此处无需处理
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}
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}
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-54
@@ -1,54 +0,0 @@
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package com.linke.transport.infrastructure.util;
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import org.apache.commons.lang3.StringUtils;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* 字符串工具类扩展:下划线/大写转驼峰
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*/
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public class CamelCaseUtils {
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/**
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* 大写下划线转驼峰(如:USER_NAME → userName)
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*/
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public static String toCamelCase(String str) {
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if (StringUtils.isBlank(str)) {
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return str;
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}
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// 先转小写,再处理下划线
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str = str.toLowerCase();
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StringBuilder sb = new StringBuilder();
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boolean nextUpperCase = false;
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for (int i = 0; i < str.length(); i++) {
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char c = str.charAt(i);
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if (c == '_') {
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nextUpperCase = true;
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} else {
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if (nextUpperCase) {
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sb.append(Character.toUpperCase(c));
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nextUpperCase = false;
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} else {
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sb.append(c);
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}
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}
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}
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return sb.toString();
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}
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/**
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* 批量转换Map的Key为驼峰
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*/
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public static <V> Map<String, V> convertMapKeyToCamel(Map<String, V> map) {
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if (map == null || map.isEmpty()) {
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return map;
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}
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Map<String, V> newMap = new HashMap<>(map.size());
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for (Map.Entry<String, V> entry : map.entrySet()) {
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String camelKey = toCamelCase(entry.getKey());
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newMap.put(camelKey, entry.getValue());
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}
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return newMap;
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}
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}
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