init2

timeline-component-common/src/main/java/com/timeline/common/utils/CommonUtils.java

@@ -0,0 +1,20 @@
+package com.timeline.common.utils;
+
+import org.springframework.web.multipart.MultipartFile;
+
+import java.io.IOException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+public class CommonUtils {
+    public static String calculateFileHash(MultipartFile file) throws IOException, NoSuchAlgorithmException {
+        MessageDigest digest = MessageDigest.getInstance("SHA-256");
+        byte[] fileBytes = file.getBytes();
+        byte[] hashBytes = digest.digest(fileBytes);
+        StringBuilder sb = new StringBuilder();
+        for (byte b : hashBytes) {
+            sb.append(String.format("%02x", b));
+        }
+        return sb.toString();
+    }
+}

timeline-component-common/src/main/java/com/timeline/common/utils/IdUtils.java

@@ -0,0 +1,18 @@
+package com.timeline.common.utils;
+
+import java.util.UUID;
+
+public class IdUtils {
+    public static String randomUuid() {
+        return UUID.randomUUID().toString().replace("-", "");
+    }
+    public static String randomUuid(boolean dash) {
+        return dash ? UUID.randomUUID().toString() : UUID.randomUUID().toString().replace("-", "");
+    }
+    /**
+     * 获取无分隔符的 UUID（大写）
+     */
+    public static String randomUuidUpper() {
+        return randomUuid().toUpperCase();
+    }
+}

timeline-component-common/src/main/java/com/timeline/common/utils/PageUtils.java

@@ -0,0 +1,49 @@
+package com.timeline.common.utils;
+
+import com.github.pagehelper.PageHelper;
+import com.github.pagehelper.PageInfo;
+import com.timeline.common.exception.CustomException;
+import com.timeline.common.response.ResponseEnum;
+import lombok.extern.slf4j.Slf4j;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@Slf4j
+public class PageUtils {
+    public PageUtils() {
+    }
+
+    public static Map pageQuery(Integer pageNum, Integer pageSize, Class clas, String methodName, Object params, String listKey) {
+        Map pageResult = new HashMap();
+        if (pageNum == null) {
+            pageNum = 0;
+        }
+
+        if (pageSize == null) {
+            pageSize = 0;
+        }
+
+        try {
+            if (pageNum >= 1 && pageSize >= 1) {
+                PageHelper.startPage(pageNum, pageSize);
+                List list = (List)ReflectUtils.call(clas, methodName, params);
+                PageInfo pageInfo = new PageInfo(list);
+                pageResult.put("pageNumber", pageInfo.getPageNum());
+                pageResult.put("pageSize", pageInfo.getPageSize());
+                pageResult.put("total", pageInfo.getTotal());
+                pageResult.put("pages", pageInfo.getPages());
+                pageResult.put(listKey, pageInfo.getList());
+                return pageResult;
+            } else {
+                List list = (List)ReflectUtils.call(clas, methodName, params);
+                pageResult.put(listKey, list);
+                return pageResult;
+            }
+        } catch (Exception e) {
+            log.error("查询失败", e);
+            throw new CustomException(ResponseEnum.SEARCH_ERROR);
+        }
+    }
+}

timeline-component-common/src/main/java/com/timeline/common/utils/ReflectUtils.java

@@ -0,0 +1,58 @@
+package com.timeline.common.utils;
+
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.JSONObject;
+import org.springframework.util.StringUtils;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.Map;
+
+public class ReflectUtils {
+    public ReflectUtils() {
+    }
+
+    public static Object persistenceData(String entityPath, String persisPath, String methodName, Map params) throws Exception {
+        Object result = null;
+
+        try {
+            if (!StringUtils.isEmpty(entityPath) && !StringUtils.isEmpty(persisPath)) {
+                Class entityClass = Class.forName(entityPath);
+                Class persisClass = Class.forName(persisPath);
+                Object daoBean = SpringContextUtils.getBean(persisClass);
+                Object o = JSONObject.toJavaObject(JSON.parseObject(JSONObject.toJSONString(params)), entityClass);
+                Method method = persisClass.getMethod(methodName, entityClass);
+                result = method.invoke(daoBean, o);
+                return result;
+            } else {
+                return null;
+            }
+        } catch (Exception e) {
+            throw e;
+        }
+    }
+
+    public static Object call(Class clas, String methodName, Object params) throws Exception {
+        Object bean = SpringContextUtils.getBean(clas);
+        Method method = clas.getMethod(methodName, Map.class);
+        Object result = method.invoke(bean, params);
+        return result;
+    }
+
+    public static Object call(String className, String methodName, String parameterType, JSONObject parameter) throws NoSuchMethodException, InvocationTargetException, IllegalAccessException, ClassNotFoundException {
+        Class clas = Class.forName(className);
+        Class parameterTypeClass = Class.forName(parameterType);
+        Object daoBean = SpringContextUtils.getBean(clas);
+        Object o = JSONObject.toJavaObject(parameter, parameterTypeClass);
+        Method method = clas.getMethod(methodName, parameterTypeClass);
+        return method.invoke(daoBean, o);
+    }
+
+    public static Object call(String className, String methodName, String parameterType, Object parameter) throws NoSuchMethodException, InvocationTargetException, IllegalAccessException, ClassNotFoundException {
+        Class clas = Class.forName(className);
+        Class parameterTypeClass = Class.forName(parameterType);
+        Object daoBean = SpringContextUtils.getBean(clas);
+        Method method = clas.getMethod(methodName, parameterTypeClass);
+        return method.invoke(daoBean, parameter);
+    }
+}

timeline-component-common/src/main/java/com/timeline/common/utils/SpringContextUtils.java

@@ -0,0 +1,30 @@
+package com.timeline.common.utils;
+
+import org.springframework.beans.BeansException;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.ApplicationContextAware;
+import org.springframework.stereotype.Component;
+
+@Component
+public class SpringContextUtils implements ApplicationContextAware {
+    private static ApplicationContext applicationContext;
+
+    public SpringContextUtils() {
+    }
+
+    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
+        SpringContextUtils.applicationContext = applicationContext;
+    }
+
+    public static ApplicationContext getApplicationContext() {
+        return applicationContext;
+    }
+
+    public static <T> T getBean(String name) throws BeansException {
+        return (T)applicationContext.getBean(name);
+    }
+
+    public static <T> T getBean(Class<?> clz) throws BeansException {
+        return (T)applicationContext.getBean(clz);
+    }
+}