10.Vue简单项目之crud+表单验证

川长思鸟来 2023-10-14 08:33 50阅读 0赞

#### Vue简单项目之crud+表单验证 ####

*  1.准备工作，配置action.js
 *  2.新增书籍前台页面编写
 *  3.修改和删除
 *  4.表单验证

## 1.准备工作，配置action.js ##

启动前端项目，启动后端项目。  
在action.js中添加下列接口

'BOOK_ADD': '/book/addBook', //书籍新增
    	'BOOK_EDIT': '/book/editBook', //书籍编辑
    	'BOOK_DEL': '/book/delBook', //书籍删除

## 2.新增书籍前台页面编写 ##

打开BookList.vue

![在这里插入图片描述][5d9be7056db64450bdabefaefbe120a7.gif_pic_center]

## 3.修改和删除 ##

<template>
      <div style="padding: 20px;">
        
        <el-form :inline="true" class="demo-form-inline">
          <el-form-item label="书籍名称">
            <el-input v-model="bookname" placeholder="书籍名称"></el-input>
          </el-form-item>
          <el-form-item>
            <el-button type="primary" @click="onSubmit">查询</el-button>
            <el-button type="success" @click="open(null)">新增</el-button>
          </el-form-item>
        </el-form>
        
        <el-table :data="tableData" stripe style="width: 100%">
          <el-table-column prop="id" label="编号" width="180">
          </el-table-column>
          <el-table-column prop="bookname" label="书籍名称" width="180">
          </el-table-column>
          <el-table-column prop="price" label="价格">
          </el-table-column>
          <el-table-column prop="booktype" label="书籍类别">
          </el-table-column>
          <el-table-column label="操作">
            <template slot-scope="scope">
              
              <el-button size="mini" @click="open(scope.$index, scope.row)">编辑</el-button>
              <el-button size="mini" type="danger" @click="del(scope.$index, scope.row)">删除</el-button>
            </template>
          </el-table-column>
        </el-table>
        
        <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="page"
          :page-sizes="[10, 20, 30, 40]" :page-size="rows" layout="total, sizes, prev, pager, next, jumper" :total="total">
        </el-pagination>
    
        
        <el-dialog :title="title" :visible.sync="dialogFormVisible" @close="clear()">
          <el-form :model="book">
    
            <el-form-item label="编号" :label-width="formLabelWidth">
              <el-input v-model="book.id" autocomplete="off"></el-input>
            </el-form-item>
    
            <el-form-item label="名称" :label-width="formLabelWidth">
              <el-input v-model="book.bookname" autocomplete="off"></el-input>
            </el-form-item>
    
            <el-form-item label="价格" :label-width="formLabelWidth">
              <el-input v-model="book.price" autocomplete="off"></el-input>
            </el-form-item>
    
            <el-form-item label="类别" :label-width="formLabelWidth">
              <el-select v-model="book.booktype" placeholder="请选择书籍类别">
                <el-option :key="'key_'+by.id" v-for="by in booktypes" :label="by.name" :value="by.name"></el-option>
              </el-select>
            </el-form-item>
    
          </el-form>
          <div slot="footer" class="dialog-footer">
            <el-button @click="clear()">取 消</el-button>
            <el-button type="primary" @click="doSub()">确 定</el-button>
          </div>
        </el-dialog>
      </div>
    </template>
    
    <script>
      export default {
          
        data() {
          
          return {
          
            bookname: '',
            tableData: [],
            page: 1,
            rows: 10,
            total: 0,
            //0727
            title: '新增窗体',
            dialogFormVisible: false,
            booktypes: [{
          
              id: 1,
              name: '言情'
            }, {
          
              id: 2,
              name: '玄幻'
            }, {
          
              id: 3,
              name: '历史'
            }, {
          
              id: 4,
              name: '都市'
            }],
            formLabelWidth: '100px',
            book: {
          
              id: '',
              bookname: '',
              price: '',
              booktype: ''
            }
          }
        },
        methods: {
          
          del(idx, row) {
          
            this.$confirm('确定要删除id为' + row.id + '的书籍信息吗, 是否继续?', '提示', {
          
              confirmButtonText: '确定',
              cancelButtonText: '取消',
              type: 'warning'
            }).then(() => {
          
              let url = this.axios.urls.BOOK_DEL;
              this.axios.get(url,{
          
                params:{
          
                  id: row.id
                }
              }).then(resp => {
          
                if (resp.data.success) {
          
                  this.$message({
          
                    message: resp.data.msg,
                    type: 'success'
                  });
                  this.query({
          });
                }else{
          
                  this.$message({
          
                    message:resp.data.msg,
                    type:'error'
                  });
                }
              }).catch(err=>{
          
    
              });
            })
    
          },
          doSub() {
          
            //新增或者编辑提交到后台的方法
            let url = this.axios.urls.BOOK_ADD;
            if (this.title == '编辑窗体') {
          
              url = this.axios.urls.BOOK_EDIT;
            }
            let params = {
          
              id: this.book.id,
              bookname: this.book.bookname,
              price: this.book.price,
              booktype: this.book.booktype
    
            }
            this.axios.post(url, params).then(resp => {
          
              console.log(resp);
              if (resp.data.success) {
          
                this.$message({
          
                  message: resp.data.msg,
                  type: 'success'
                });
                this.clear();
                this.query({
          });
              } else {
          
                this.$message.error(resp.data.msg);
              }
            }).catch(err => {
          
    
            })
          },
          clear() {
          
            //清空表单方法
            this.title = '新增窗体'
            this.dialogFormVisible = false;
            this.book = {
          
              id: '',
              bookname: '',
              price: '',
              booktype: ''
            };
    
          },
          open(idx, row) {
          
            //打开添加/编辑书籍信息的窗体
            this.dialogFormVisible = true;
            if (row) {
          
              this.title = '编辑窗体',
                this.book.id = row.id;
              this.book.bookname = row.bookname;
              this.book.price = row.price;
              this.book.booktype = row.booktype;
            }
          },
          query(params) {
          
            //通用查询方法
            let url = this.axios.urls.BOOK_LIST;
            this.axios.get(url, {
          
              params: params
            }).then(resp => {
          
              console.log(resp);
              this.tableData = resp.data.rows;
              this.total = resp.data.total;
            }).catch(err => {
          
    
            })
          },
          onSubmit() {
          
            //搜索方法
            let params = {
          
              bookname: this.bookname
            }
            this.query(params);
    
          },
          handleSizeChange(r) {
          
            console.log("当前展示的记录数为" + r + "条")
            let params = {
          
              bookname: this.bookname,
              rows: r,
              page: this.page
            }
            this.query(params)
    
          },
          handleCurrentChange(p) {
          
            console.log("当前展示的页码是第" + p + "页")
            let params = {
          
              bookname: this.bookname,
              page: p,
              rows: this.rows
            }
            this.query(params)
          }
    
        }
      }
    </script>
    
    <style>
    </style>

![在这里插入图片描述][e6359d2708884f7a833cb1b435cdff0a.gif_pic_center]

## 4.表单验证 ##

<template>
      <div style="padding: 20px;">
        
        <el-form :inline="true" class="demo-form-inline">
          <el-form-item label="书籍名称">
            <el-input v-model="bookname" placeholder="书籍名称"></el-input>
          </el-form-item>
          <el-form-item>
            <el-button type="primary" @click="onSubmit">查询</el-button>
            <el-button type="success" @click="open(null)">新增</el-button>
          </el-form-item>
        </el-form>
        
        <el-table :data="tableData" stripe style="width: 100%">
          <el-table-column prop="id" label="编号" width="180">
          </el-table-column>
          <el-table-column prop="bookname" label="书籍名称" width="180">
          </el-table-column>
          <el-table-column prop="price" label="价格">
          </el-table-column>
          <el-table-column prop="booktype" label="书籍类别">
          </el-table-column>
          <el-table-column label="操作">
            <template slot-scope="scope">
              
              <el-button size="mini" @click="open(scope.$index, scope.row)">编辑</el-button>
              <el-button size="mini" type="danger" @click="del(scope.$index, scope.row)">删除</el-button>
            </template>
          </el-table-column>
        </el-table>
        
        <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="page"
          :page-sizes="[10, 20, 30, 40]" :page-size="rows" layout="total, sizes, prev, pager, next, jumper" :total="total">
        </el-pagination>
    
        
        <el-dialog :title="title" :visible.sync="dialogFormVisible" @close="clear()">
          <el-form :model="book" :rules="rules" ref="book">
    
            <el-form-item label="编号" :label-width="formLabelWidth">
              <el-input v-model="book.id" autocomplete="off"></el-input>
            </el-form-item>
    
            <el-form-item label="名称" :label-width="formLabelWidth" prop="bookname">
              <el-input v-model="book.bookname" autocomplete="off"></el-input>
            </el-form-item>
    
            <el-form-item label="价格" :label-width="formLabelWidth" prop="price">
              <el-input v-model="book.price" autocomplete="off"></el-input>
            </el-form-item>
    
            <el-form-item label="类别" :label-width="formLabelWidth" prop="booktype">
              <el-select v-model="book.booktype" placeholder="请选择书籍类别">
                <el-option :key="'key_'+by.id" v-for="by in booktypes" :label="by.name" :value="by.name"></el-option>
              </el-select>
            </el-form-item>
    
          </el-form>
          <div slot="footer" class="dialog-footer">
            <el-button @click="clear()">取 消</el-button>
            <el-button type="primary" @click="doSub()">确 定</el-button>
          </div>
        </el-dialog>
      </div>
    </template>
    
    <script>
      export default {
          
        data() {
          
          return {
          
            bookname: '',
            tableData: [],
            page: 1,
            rows: 10,
            total: 0,
            //0727
            title: '新增窗体',
            dialogFormVisible: false,
            booktypes: [{
          
              id: 1,
              name: '言情'
            }, {
          
              id: 2,
              name: '玄幻'
            }, {
          
              id: 3,
              name: '历史'
            }, {
          
              id: 4,
              name: '都市'
            }],
            formLabelWidth: '100px',
            book: {
          
              id: '',
              bookname: '',
              price: '',
              booktype: ''
            },
            rules: {
          
              bookname: [{
          
                required: true,
                message: '请输入书籍名称',
                trigger: 'blur'
              }],
              price: [{
          
                required: true,
                message: '请输入价格',
                trigger: 'blur'
              }],
              booktype: [{
          
                required: true,
                message: '请选择类别',
                trigger: 'blur'
              }]
            }
          }
        },
        methods: {
          
          del(idx, row) {
          
            this.$confirm('确定要删除id为' + row.id + '的书籍信息吗, 是否继续?', '提示', {
          
              confirmButtonText: '确定',
              cancelButtonText: '取消',
              type: 'warning'
            }).then(() => {
          
              let url = this.axios.urls.BOOK_DEL;
              this.axios.get(url, {
          
                params: {
          
                  id: row.id
                }
              }).then(resp => {
          
                if (resp.data.success) {
          
                  this.$message({
          
                    message: resp.data.msg,
                    type: 'success'
                  });
                  this.query({
          });
                } else {
          
                  this.$message({
          
                    message: resp.data.msg,
                    type: 'error'
                  });
                }
              }).catch(err => {
          
    
              });
            })
    
          },
          doSub() {
          
            //新增或者编辑提交到后台的方法
            let url = this.axios.urls.BOOK_ADD;
            if (this.title == '编辑窗体') {
          
              url = this.axios.urls.BOOK_EDIT;
            }
            let params = {
          
              id: this.book.id,
              bookname: this.book.bookname,
              price: this.book.price,
              booktype: this.book.booktype
    
            }
    
            this.$refs['book'].validate((valid) => {
          
              if (valid) {
          //校验
                //验证通过，发送请求
                this.axios.post(url, params).then(resp => {
          
                  console.log(resp);
                  if (resp.data.success) {
          
                    this.$message({
          
                      message: resp.data.msg,
                      type: 'success'
                    });
                    this.clear();
                    this.query({
          });
                  } else {
          
                    this.$message.error(resp.data.msg);
                  }
                }).catch(err => {
          })
    
              } else {
          
    
                console.log('error submit!!');
                return false;
    
              }
            });
    
    
          },
          clear() {
          
            //清空表单方法
            this.title = '新增窗体'
            this.dialogFormVisible = false;
            this.book = {
          
              id: '',
              bookname: '',
              price: '',
              booktype: ''
            };
    
          },
          open(idx, row) {
          
            //打开添加/编辑书籍信息的窗体
            this.dialogFormVisible = true;
            if (row) {
          
              this.title = '编辑窗体',
                this.book.id = row.id;
              this.book.bookname = row.bookname;
              this.book.price = row.price;
              this.book.booktype = row.booktype;
            }
          },
          query(params) {
          
            //通用查询方法
            let url = this.axios.urls.BOOK_LIST;
            this.axios.get(url, {
          
              params: params
            }).then(resp => {
          
              console.log(resp);
              this.tableData = resp.data.rows;
              this.total = resp.data.total;
            }).catch(err => {
          
    
            })
          },
          onSubmit() {
          
            //搜索方法
            let params = {
          
              bookname: this.bookname
            }
            this.query(params);
    
          },
          handleSizeChange(r) {
          
            console.log("当前展示的记录数为" + r + "条")
            let params = {
          
              bookname: this.bookname,
              rows: r,
              page: this.page
            }
            this.query(params)
    
          },
          handleCurrentChange(p) {
          
            console.log("当前展示的页码是第" + p + "页")
            let params = {
          
              bookname: this.bookname,
              page: p,
              rows: this.rows
            }
            this.query(params)
          }
    
        }
      }
    </script>
    
    <style>
    </style>

![在这里插入图片描述][da69daf75b664a8f89f44f4bcd394e88.gif_pic_center]

[5d9be7056db64450bdabefaefbe120a7.gif_pic_center]: https://img-blog.csdnimg.cn/5d9be7056db64450bdabefaefbe120a7.gif#pic_center
[e6359d2708884f7a833cb1b435cdff0a.gif_pic_center]: https://img-blog.csdnimg.cn/e6359d2708884f7a833cb1b435cdff0a.gif#pic_center
[da69daf75b664a8f89f44f4bcd394e88.gif_pic_center]: https://img-blog.csdnimg.cn/da69daf75b664a8f89f44f4bcd394e88.gif#pic_center