Java前后端协议联调
十八岁讨厌编程 人气:0前后台协议联调
修改功能
需求:完成图书信息的修改功能
- 找到页面中的编辑按钮,该按钮绑定了
@click="handleUpdate(scope.row)"
- 在method的
handleUpdate
方法中发送异步请求根据ID查询图书信息 - 根据后台返回的结果,判断是否查询成功,如果查询成功打开修改面板回显数据,如果失败提示错误信息
- 修改完成后找到修改面板的
确定
按钮,该按钮绑定了@click="handleEdit()"
- 在method的
handleEdit
方法中发送异步请求提交修改数据 - 根据后台返回的结果,判断是否修改成功。如果成功提示错误信息,关闭修改面板,重新查询数据,如果失败提示错误信息
scope.row代表的是当前行的行数据,也就是说,scope.row就是选中行对应的json数据,如下:
{ "id": 1, "type": "计算机理论", "name": "Spring实战 第五版", "description": "Spring入门经典教程,深入理解Spring原理技术内幕" }
修改handleUpdate
方法
//弹出编辑窗口 handleUpdate(row) { // console.log(row); //row.id 查询条件 //查询数据,根据id查询 axios.get("/books/"+row.id).then((res)=>{ if(res.data.code == 20041){ //展示弹层,加载数据 this.formData = res.data.data; this.dialogFormVisible4Edit = true; }else{ this.$message.error(res.data.msg); } }); }
修改handleEdit
方法
handleEdit() { //发送ajax请求 axios.put("/books",this.formData).then((res)=>{ //如果操作成功,关闭弹层,显示数据 if(res.data.code == 20031){ this.dialogFormVisible4Edit = false; this.$message.success("修改成功"); }else if(res.data.code == 20030){ this.$message.error("修改失败"); }else{ this.$message.error(res.data.msg); } }).finally(()=>{ this.getAll(); }); }
至此修改功能就已经完成。
删除功能
需求:完成页面的删除功能。
- 找到页面的删除按钮,按钮上绑定了
@click="handleDelete(scope.row)"
- method的
handleDelete
方法弹出提示框 - 用户点击取消,提示操作已经被取消。
- 用户点击确定,发送异步请求并携带需要删除数据的主键ID
- 根据后台返回结果做不同的操作
如果返回成功,提示成功信息,并重新查询数据
如果返回失败,提示错误信息,并重新查询数据
修改handleDelete
方法
handleDelete(row) { //1.弹出提示框 this.$confirm("此操作永久删除当前数据,是否继续?","提示",{ type:'info' }).then(()=>{ //2.做删除业务 axios.delete("/books/"+row.id).then((res)=>{ if(res.data.code == 20021){ this.$message.success("删除成功"); }else{ this.$message.error("删除失败"); } }).finally(()=>{ this.getAll(); }); }).catch(()=>{ //3.取消删除 this.$message.info("取消删除操作"); }); }
完整页面
<!DOCTYPE html> <html> <head> <!-- 页面meta --> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>SpringMVC案例</title> <meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport"> <!-- 引入样式 --> <link rel="stylesheet" href="../plugins/elementui/index.css" rel="external nofollow" > <link rel="stylesheet" href="../plugins/font-awesome/css/font-awesome.min.css" rel="external nofollow" > <link rel="stylesheet" href="../css/style.css" rel="external nofollow" > </head> <body class="hold-transition"> <div id="app"> <div class="content-header"> <h1>图书管理</h1> </div> <div class="app-container"> <div class="box"> <div class="filter-container"> <el-input placeholder="图书名称" v-model="pagination.queryString" style="width: 200px;" class="filter-item"></el-input> <el-button @click="getAll()" class="dalfBut">查询</el-button> <el-button type="primary" class="butT" @click="handleCreate()">新建</el-button> </div> <el-table size="small" current-row-key="id" :data="dataList" stripe highlight-current-row> <el-table-column type="index" align="center" label="序号"></el-table-column> <el-table-column prop="type" label="图书类别" align="center"></el-table-column> <el-table-column prop="name" label="图书名称" align="center"></el-table-column> <el-table-column prop="description" label="描述" align="center"></el-table-column> <el-table-column label="操作" align="center"> <template slot-scope="scope"> <el-button type="primary" size="mini" @click="handleUpdate(scope.row)">编辑</el-button> <el-button type="danger" size="mini" @click="handleDelete(scope.row)">删除</el-button> </template> </el-table-column> </el-table> <!-- 新增标签弹层 --> <div class="add-form"> <el-dialog title="新增图书" :visible.sync="dialogFormVisible"> <el-form ref="dataAddForm" :model="formData" :rules="rules" label-position="right" label-width="100px"> <el-row> <el-col :span="12"> <el-form-item label="图书类别" prop="type"> <el-input v-model="formData.type"/> </el-form-item> </el-col> <el-col :span="12"> <el-form-item label="图书名称" prop="name"> <el-input v-model="formData.name"/> </el-form-item> </el-col> </el-row> <el-row> <el-col :span="24"> <el-form-item label="描述"> <el-input v-model="formData.description" type="textarea"></el-input> </el-form-item> </el-col> </el-row> </el-form> <div slot="footer" class="dialog-footer"> <el-button @click="dialogFormVisible = false">取消</el-button> <el-button type="primary" @click="handleAdd()">确定</el-button> </div> </el-dialog> </div> <!-- 编辑标签弹层 --> <div class="add-form"> <el-dialog title="编辑检查项" :visible.sync="dialogFormVisible4Edit"> <el-form ref="dataEditForm" :model="formData" :rules="rules" label-position="right" label-width="100px"> <el-row> <el-col :span="12"> <el-form-item label="图书类别" prop="type"> <el-input v-model="formData.type"/> </el-form-item> </el-col> <el-col :span="12"> <el-form-item label="图书名称" prop="name"> <el-input v-model="formData.name"/> </el-form-item> </el-col> </el-row> <el-row> <el-col :span="24"> <el-form-item label="描述"> <el-input v-model="formData.description" type="textarea"></el-input> </el-form-item> </el-col> </el-row> </el-form> <div slot="footer" class="dialog-footer"> <el-button @click="dialogFormVisible4Edit = false">取消</el-button> <el-button type="primary" @click="handleEdit()">确定</el-button> </div> </el-dialog> </div> </div> </div> </div> </body> <!-- 引入组件库 --> <script src="../js/vue.js"></script> <script src="../plugins/elementui/index.js"></script> <script type="text/javascript" src="../js/jquery.min.js"></script> <script src="../js/axios-0.18.0.js"></script> <script> var vue = new Vue({ el: '#app', data:{ pagination: {}, dataList: [],//当前页要展示的列表数据 formData: {},//表单数据 dialogFormVisible: false,//控制表单是否可见 dialogFormVisible4Edit:false,//编辑表单是否可见 rules: {//校验规则 type: [{ required: true, message: '图书类别为必填项', trigger: 'blur' }], name: [{ required: true, message: '图书名称为必填项', trigger: 'blur' }] } }, //钩子函数,VUE对象初始化完成后自动执行 created() { this.getAll(); }, methods: { //列表 getAll() { //发送ajax请求 axios.get("/books").then((res)=>{ this.dataList = res.data.data; }); }, //弹出添加窗口 handleCreate() { this.dialogFormVisible = true; this.resetForm(); }, //重置表单 resetForm() { this.formData = {}; }, //添加 handleAdd () { //发送ajax请求 axios.post("/books",this.formData).then((res)=>{ console.log(res.data); //如果操作成功,关闭弹层,显示数据 if(res.data.code == 20011){ this.dialogFormVisible = false; this.$message.success("添加成功"); }else if(res.data.code == 20010){ this.$message.error("添加失败"); }else{ this.$message.error(res.data.msg); } }).finally(()=>{ this.getAll(); }); }, //弹出编辑窗口 handleUpdate(row) { // console.log(row); //row.id 查询条件 //查询数据,根据id查询 axios.get("/books/"+row.id).then((res)=>{ // console.log(res.data.data); if(res.data.code == 20041){ //展示弹层,加载数据 this.formData = res.data.data; this.dialogFormVisible4Edit = true; }else{ this.$message.error(res.data.msg); } }); }, //编辑 handleEdit() { //发送ajax请求 axios.put("/books",this.formData).then((res)=>{ //如果操作成功,关闭弹层,显示数据 if(res.data.code == 20031){ this.dialogFormVisible4Edit = false; this.$message.success("修改成功"); }else if(res.data.code == 20030){ this.$message.error("修改失败"); }else{ this.$message.error(res.data.msg); } }).finally(()=>{ this.getAll(); }); }, // 删除 handleDelete(row) { //1.弹出提示框 this.$confirm("此操作永久删除当前数据,是否继续?","提示",{ type:'info' }).then(()=>{ //2.做删除业务 axios.delete("/books/"+row.id).then((res)=>{ if(res.data.code == 20021){ this.$message.success("删除成功"); }else{ this.$message.error("删除失败"); } }).finally(()=>{ this.getAll(); }); }).catch(()=>{ //3.取消删除 this.$message.info("取消删除操作"); }); } } }) </script> </html>
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