diff --git a/pt--frontend/src/api/activity.js b/pt--frontend/src/api/activity.js
new file mode 100644
index 0000000..0b2f802
--- /dev/null
+++ b/pt--frontend/src/api/activity.js
@@ -0,0 +1,13 @@
+import axios from 'axios';
+
+const BASE_URL = 'http://localhost:8080/activity';
+
+// 获取所有 is_show == 0 的活动预览（只含标题和图片）
+export const getActivityPreviews = () => {
+    return axios.get(`${BASE_URL}/preview`);
+};
+
+// 获取所有 is_show == 0 的完整活动信息
+export const getFullActivities = () => {
+    return axios.get(`${BASE_URL}/full`);
+};
diff --git a/pt--frontend/src/api/chat.js b/pt--frontend/src/api/chat.js
new file mode 100644
index 0000000..69f8353
--- /dev/null
+++ b/pt--frontend/src/api/chat.js
@@ -0,0 +1,37 @@
+import axios from 'axios';
+
+const BASE_URL = 'http://localhost:8080/chat';  // 根据你的后端接口地址调整
+
+// 发送消息
+export const sendMessage = async ({ senderId, receiverId, content }) => {
+    const now = new Date().toISOString(); // 发送时间
+
+    // 构造后端需要的格式，chatimformation1 或 chatimformation2 中只有一个有值
+    const payload = {
+        friend1: senderId,
+        friend2: receiverId,
+        talkTime: now,
+        chatimformation1: senderId < receiverId ? content : null, // 约定较小 ID 为 friend1 发送的消息
+        chatimformation2: senderId > receiverId ? content : null,
+    };
+
+    const response = await axios.post(`${BASE_URL}/create`, payload);
+    return response.data;
+};
+
+// 获取两个用户之间的聊天记录
+export const getMessagesByUserIds = async (senderId, receiverId) => {
+    const response = await axios.get(`${BASE_URL}/between`, {
+        params: {
+            user1: senderId,
+            user2: receiverId,
+        }
+    });
+    return response.data;
+};
+
+// 可选：获取某用户与所有人的聊天记录（如果你后续需要聊天列表用）
+export const getChatsByUser = async (userId) => {
+    const response = await axios.get(`${BASE_URL}/user/${userId}`);
+    return response.data;
+};
diff --git a/pt--frontend/src/api/comment.js b/pt--frontend/src/api/comment.js
new file mode 100644
index 0000000..28b2b4e
--- /dev/null
+++ b/pt--frontend/src/api/comment.js
@@ -0,0 +1,40 @@
+import axios from 'axios';
+
+const BASE_URL = 'http://localhost:8080/comment';
+
+// 创建评论
+export const createComment = (commentData) => {
+    return axios.post(`${BASE_URL}/create`, commentData);
+};
+
+// 删除评论
+export const deleteComment = (commentId) => {
+    return axios.delete(`${BASE_URL}/delete/${commentId}`);
+};
+
+// 更新评论
+export const updateComment = (commentData) => {
+    return axios.put(`${BASE_URL}/update`, commentData);
+};
+
+// 获取某个帖子的所有评论
+// comment.js
+export async function getCommentsByPostId(postid) {
+    try {
+        const response = await axios.get(`${BASE_URL}/post/${postid}`);
+        return Array.isArray(response.data) ? response.data : []; // 确保返回数据是数组
+    } catch (error) {
+        console.error('获取评论失败', error);
+        return [];
+    }
+}
+
+// 点赞评论
+export const likeComment = (commentId) => {
+    return axios.post(`${BASE_URL}/like/${commentId}`);
+};
+
+// 取消点赞评论
+export const unlikeComment = (commentId) => {
+    return axios.post(`${BASE_URL}/unlike/${commentId}`);
+};
diff --git a/pt--frontend/src/api/friends.js b/pt--frontend/src/api/friends.js
new file mode 100644
index 0000000..f139cc2
--- /dev/null
+++ b/pt--frontend/src/api/friends.js
@@ -0,0 +1,20 @@
+import axios from 'axios';
+
+const BASE_URL = 'http://localhost:8080/friends';
+
+// 添加好友
+export const addFriend = (friendData) => {
+    return axios.post(`${BASE_URL}/add`, friendData);
+};
+
+// ✅ 删除好友（通过 friend1 和 friend2 双向删除）
+export const deleteFriend = (friend1, friend2) => {
+    return axios.delete(`${BASE_URL}/delete`, {
+        params: { friend1, friend2 }
+    });
+};
+
+// 查询某个用户的所有好友（friend1 或 friend2）
+export const getFriendsByUserId = (userid) => {
+    return axios.get(`${BASE_URL}/list/${userid}`);
+};
diff --git a/pt--frontend/src/api/index.js b/pt--frontend/src/api/index.js
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/pt--frontend/src/api/index.js
diff --git a/pt--frontend/src/api/post.js b/pt--frontend/src/api/post.js
new file mode 100644
index 0000000..9aa47a1
--- /dev/null
+++ b/pt--frontend/src/api/post.js
@@ -0,0 +1,110 @@
+const BASE_URL = 'http://localhost:8080/post';
+
+/**
+ * 创建帖子（带图片）
+ * @param {FormData} formData 包含 userid、post_title、post_content、tags、rannge、is_pinned、photo
+ */
+export const createPost = (formData) => {
+    return fetch(`${BASE_URL}/create`, {
+        method: 'POST',
+        body: formData,
+    }).then(res => res.json());
+};
+
+/**
+ * 删除帖子
+ * @param {number} postid 帖子 ID
+ */
+export const deletePost = (postid) => {
+    return fetch(`${BASE_URL}/delete/${postid}`, {
+        method: 'DELETE',
+    }).then(res => res.json());
+};
+
+/**
+ * 更新帖子（JSON 格式）
+ * @param {Object} post 帖子对象
+ */
+export const updatePost = (post) => {
+    return fetch(`${BASE_URL}/update`, {
+        method: 'PUT',
+        headers: {
+            'Content-Type': 'application/json',
+        },
+        body: JSON.stringify(post),
+    }).then(res => res.json());
+};
+
+/**
+ * 关键词搜索帖子
+ * @param {string} keyword 搜索关键词
+ */
+export const searchPosts = (keyword) => {
+    return fetch(`${BASE_URL}/search?keyword=${encodeURIComponent(keyword)}`)
+        .then(res => res.json());
+};
+
+/**
+ * 点赞帖子
+ * @param {number} postid 帖子 ID
+ */
+export const likePost = (postid) => {
+    return fetch(`${BASE_URL}/like/${postid}`, {
+        method: 'PUT',
+    }).then(res => res.json());
+};
+
+/**
+ * 取消点赞帖子
+ * @param {number} postid 帖子 ID
+ */
+export const unlikePost = (postid) => {
+    return fetch(`${BASE_URL}/unlike/${postid}`, {
+        method: 'PUT',
+    }).then(res => res.json());
+};
+
+/**
+ * 置顶帖子
+ * @param {number} postid 帖子 ID
+ */
+export const pinPost = (postid) => {
+    return fetch(`${BASE_URL}/pin/${postid}`, {
+        method: 'PUT',
+    }).then(res => res.json());
+};
+
+/**
+ * 取消置顶帖子
+ * @param {number} postid 帖子 ID
+ */
+export const unpinPost = (postid) => {
+    return fetch(`${BASE_URL}/unpin/${postid}`, {
+        method: 'PUT',
+    }).then(res => res.json());
+};
+
+/**
+ * 获取某用户所有帖子
+ * @param {number} userid 用户 ID
+ */
+export const findPostsByUserId = (userid) => {
+    return fetch(`${BASE_URL}/findByUserid?userid=${userid}`)
+        .then(res => res.json());
+};
+
+/**
+ * 获取所有置顶帖子
+ */
+export const findPinnedPosts = () => {
+    return fetch(`${BASE_URL}/findPinned`)
+        .then(res => res.json());
+};
+
+/**
+ * 获取所有帖子（排序后）
+ */
+export const getAllPostsSorted = () => {
+    return fetch(`${BASE_URL}/all`)
+        .then(res => res.json());
+};
diff --git a/pt--frontend/src/api/request.js b/pt--frontend/src/api/request.js
new file mode 100644
index 0000000..0a41208
--- /dev/null
+++ b/pt--frontend/src/api/request.js
@@ -0,0 +1,93 @@
+import axios from 'axios';
+
+const BASE_URL = 'http://localhost:8080/request';
+
+// 创建求助帖（支持上传图片）
+export const createRequest = (formData) => {
+    return axios.post(`${BASE_URL}/create`, formData, {
+        headers: {
+            'Content-Type': 'multipart/form-data',
+        },
+    });
+};
+
+// 修改求助帖金额
+export const updateMoney = (requestid, money) => {
+    return axios.put(`${BASE_URL}/updateMoney/${requestid}`, null, {
+        params: { money },
+    });
+};
+
+// ✅ 新增：根据名称批量更新被协助用户 ID
+export const updateLoaduserByName = (name, loaduser) => {
+    return axios.post(`${BASE_URL}/updateLoaduserByName`, null, {
+        params: { name, loaduser },
+    });
+};
+
+// 删除求助帖
+export const deleteRequest = (requestid) => {
+    return axios.delete(`${BASE_URL}/delete/${requestid}`);
+};
+
+// 根据名称查找求助帖
+export const findByName = async (name) => {
+    try {
+        const response = await axios.get(`${BASE_URL}/findByName`, {
+            params: { name },
+        });
+        return Array.isArray(response.data) ? response.data : [];
+    } catch (error) {
+        console.error('按名称查找求助帖失败', error);
+        return [];
+    }
+};
+
+// 根据发帖用户 ID 查找求助帖
+export const findByUserid = async (userid) => {
+    try {
+        const response = await axios.get(`${BASE_URL}/findByUserid`, {
+            params: { userid },
+        });
+        return Array.isArray(response.data) ? response.data : [];
+    } catch (error) {
+        console.error('按用户ID查找求助帖失败', error);
+        return [];
+    }
+};
+
+// 根据被协助用户 ID 查找求助帖
+export const findByLoaduser = async (loaduser) => {
+    try {
+        const response = await axios.get(`${BASE_URL}/findByLoaduser`, {
+            params: { loaduser },
+        });
+        return Array.isArray(response.data) ? response.data : [];
+    } catch (error) {
+        console.error('按被协助用户ID查找求助帖失败', error);
+        return [];
+    }
+};
+
+// 获取某名称的总金额
+export const getTotalMoneyByName = async (name) => {
+    try {
+        const response = await axios.get(`${BASE_URL}/totalMoneyByName`, {
+            params: { name },
+        });
+        return typeof response.data === 'number' ? response.data : 0;
+    } catch (error) {
+        console.error('获取总金额失败', error);
+        return 0;
+    }
+};
+
+export const getAllRequests = async () => {
+    try {
+        const response = await axios.get(`${BASE_URL}/all`);
+        return Array.isArray(response.data) ? response.data : [];
+    } catch (error) {
+        console.error('获取全部求助帖失败', error);
+        return [];
+    }
+};