135 lines
2.9 KiB
Markdown
135 lines
2.9 KiB
Markdown
# 发送私信
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---
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## DAO
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```java
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/**
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* 新增一条私信
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* @param message
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* @return
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*/
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int insertMessage(Message message);
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```
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```xml
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<!--新增一条私信-->
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<insert id="insertMessage" parameterType="Message" keyProperty="id">
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insert into message(<include refid="insertFields"></include>)
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values(#{fromId}, #{toId}, #{conversationId}, #{content}, #{status}, #{createTime})
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</insert>
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```
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## Service
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```java
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// 添加一条私信
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public int addMessage(Message message) {
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// 转义 HTML 标签
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message.setContent(HtmlUtils.htmlEscape(message.getContent()));
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// 过滤敏感词
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message.setContent(sensitiveFilter.filter(message.getContent()));
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return messageMapper.insertMessage(message);
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}
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```
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## Controller
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```java
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/**
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* 发送私信
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* @param toName 收信人 username
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* @param content 内容
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* @return
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*/
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@PostMapping("/letter/send")
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@ResponseBody
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public String sendLetter(String toName, String content) {
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User target = userService.findUserByName(toName);
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if (target == null) {
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return CommunityUtil.getJSONString(1, "目标用户不存在");
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}
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Message message = new Message();
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message.setFromId(hostHolder.getUser().getId());
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message.setToId(target.getId());
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if (message.getFromId() < message.getToId()) {
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message.setConversationId(message.getFromId() + "_" + message.getToId());
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}
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else {
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message.setConversationId(message.getToId() + "_" + message.getFromId());
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}
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message.setContent(content);
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message.setStatus(0); // 默认就是 0 未读，可不写
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message.setCreateTime(new Date());
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messageService.addMessage(message);
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return CommunityUtil.getJSONString(0);
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}
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```
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## 前端
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```html
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<h5 id="exampleModalLabel">发私信</h5>
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<button type="button" class="close" data-dismiss="modal" aria-label="Close"></button>
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<div class="modal-body">
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<form>
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<input id="recipient-name">
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<textarea id="message-text" ></textarea>
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</form>
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</div>
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<div class="modal-footer">
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<button id="sendBtn">发送</button>
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</div>
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```
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对应的 `letter.js` 文件：
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```js
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$(function(){
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$("#sendBtn").click(send_letter);
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$(".close").click(delete_msg);
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});
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function send_letter() {
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$("#sendModal").modal("hide");
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var toName = $("#recipient-name").val();
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var content = $("#message-text").val();
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$.post(
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CONTEXT_PATH + "/letter/send",
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{"toName":toName, "content":content},
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function(data) {
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data = $.parseJSON(data);
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if (data.code == 0) {
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$("#hintBody").text("发送成功")
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}
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else {
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$("#hintBody").text(data.msg);
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}
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/*刷新界面*/
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$("#hintModal").modal("show");
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setTimeout(function(){
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$("#hintModal").modal("hide");
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location.reload()
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}, 2000);
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}
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)
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}
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function delete_msg() {
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// TODO 删除数据
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$(this).parents(".media").remove();
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}
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``` |