From 06985916defe4d19f27541d2c5e110e652f42f2e Mon Sep 17 00:00:00 2001 From: wenguang Date: Thu, 2 Apr 2020 11:20:37 +0800 Subject: [PATCH] =?UTF-8?q?Excel=E6=96=87=E4=BB=B6=E5=86=99=E5=85=A5?= =?UTF-8?q?=E6=B5=8B=E8=AF=95=E7=94=A8=E4=BE=8B=E6=B7=BB=E5=8A=A0?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- pom.xml | 12 +++ .../com/we/controller/ExcelController.java | 4 +- src/main/java/com/we/pojo/Student.java | 9 +- src/main/resources/application.yml | 7 ++ src/test/java/com/we/WriteTest.java | 86 ++++++++++++++++++- 5 files changed, 110 insertions(+), 8 deletions(-) diff --git a/pom.xml b/pom.xml index e4968fb..aa70d7c 100644 --- a/pom.xml +++ b/pom.xml @@ -91,6 +91,18 @@ 1.2.67 + + org.springframework.boot + spring-boot-starter-data-redis + 2.1.3.RELEASE + + + + org.slf4j + slf4j-log4j12 + 1.7.6 + + \ No newline at end of file diff --git a/src/main/java/com/we/controller/ExcelController.java b/src/main/java/com/we/controller/ExcelController.java index 6f8395e..c71b966 100644 --- a/src/main/java/com/we/controller/ExcelController.java +++ b/src/main/java/com/we/controller/ExcelController.java @@ -36,7 +36,7 @@ public class ExcelController { */ @RequestMapping("/exportExcel") public String exportExcel() { - List stuList = studentService.selectStuList(); + List stuList = studentService.selectStuList(); String path = "F:/Desktop/"; String fileName = path + "学生信息表格" + System.currentTimeMillis() + ".xlsx"; EasyExcel.write(fileName, Student.class).sheet("学生信息表格").doWrite(stuList); @@ -50,7 +50,7 @@ public class ExcelController { */ @RequestMapping("/downloadExcel") public void downloadExcel(HttpServletResponse response) throws IOException { - List stuList = studentService.selectStuList(); + List stuList = studentService.selectStuList(); response.setContentType("application/vnd.ms-excel"); response.setCharacterEncoding("utf-8"); // 这里URLEncoder.encode可以防止中文乱码 diff --git a/src/main/java/com/we/pojo/Student.java b/src/main/java/com/we/pojo/Student.java index abd251d..8fcb513 100644 --- a/src/main/java/com/we/pojo/Student.java +++ b/src/main/java/com/we/pojo/Student.java @@ -1,7 +1,6 @@ package com.we.pojo; import com.alibaba.excel.annotation.ExcelProperty; -import com.alibaba.excel.metadata.BaseRowModel; import lombok.Data; import lombok.Getter; import lombok.Setter; @@ -11,12 +10,12 @@ import lombok.ToString; @Getter @Setter @ToString -public class Student extends BaseRowModel { - @ExcelProperty(value = "学号", index = 0) +public class Student { + @ExcelProperty(value = {"基础信息", "学号"}, index = 0) private String stuid; - @ExcelProperty(value = "班级", index = 1) + @ExcelProperty(value = {"基础信息", "班级"}, index = 1) private String stuclass; - @ExcelProperty(value = "姓名", index = 2) + @ExcelProperty(value = {"基础信息", "姓名"}, index = 2) private String stuname; @ExcelProperty(value = "年龄", index = 3) private String stuage; diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml index 44cc760..0e00ac1 100644 --- a/src/main/resources/application.yml +++ b/src/main/resources/application.yml @@ -6,6 +6,13 @@ spring: username: root password: 1234 driver-class-name: com.mysql.cj.jdbc.Driver + redis: + host: 127.0.0.1 + port: 6379 + password: + #连接超时时间（毫秒） + timeout: 30000 + thymeleaf: prefix: classpath:/templates/ suffix: .html diff --git a/src/test/java/com/we/WriteTest.java b/src/test/java/com/we/WriteTest.java index 2806754..dd91508 100644 --- a/src/test/java/com/we/WriteTest.java +++ b/src/test/java/com/we/WriteTest.java @@ -1,18 +1,28 @@ package com.we; +import com.alibaba.excel.EasyExcel; +import com.alibaba.excel.ExcelWriter; +import com.alibaba.excel.write.metadata.WriteSheet; import com.we.pojo.Student; import com.we.service.IStudentService; import org.junit.Test; import org.junit.runner.RunWith; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.context.SpringBootTest; import org.springframework.test.context.junit4.SpringRunner; +import java.util.HashSet; import java.util.List; +import java.util.Set; + @RunWith(SpringRunner.class) -@SpringBootTest(classes = MainApplication.class, webEnvironment = SpringBootTest.WebEnvironment.DEFINED_PORT) +@SpringBootTest//(classes = MainApplication.class, webEnvironment = SpringBootTest.WebEnvironment.DEFINED_PORT) public class WriteTest { + public static final Logger log = LoggerFactory.getLogger(WriteTest.class); + @Autowired private IStudentService studentService; @@ -20,8 +30,82 @@ public class WriteTest { @Test public void selectAll() { List stus = studentService.selectStuList(); + log.info("查询结果："); System.out.println(stus.get(0)); } + @Test + public void simpleWrite() { + List stuList = studentService.selectStuList(); + String path = "F:/Desktop/"; + String fileName = path + "学生信息表格" + System.currentTimeMillis() + ".xlsx"; + // 这里 需要指定写用哪个class去写，然后写到第一个sheet，名字为模板 然后文件流会自动关闭 + // 如果这里想使用03 则 传入excelType参数即可 + EasyExcel.write(fileName, Student.class).sheet("学生信息").doWrite(stuList); + } + + /** + * 指定不导出的列 + */ + @Test + public void excludeOrIncludeWriter() { + + List stuList = studentService.selectStuList(); + String path = "F:/Desktop/"; + String fileName = path + "学生信息表格" + System.currentTimeMillis() + ".xlsx"; + + Set excludeColumnFiledNames = new HashSet<>(); + excludeColumnFiledNames.add("stuage"); + EasyExcel.write(fileName, Student.class).excludeColumnFiledNames(excludeColumnFiledNames).sheet("学生信息").doWrite(stuList); + } + + /** + * 同一个对象，写入不同的sheet + */ + @Test + public void repeatedWrite1() { + + List stuList = studentService.selectStuList(); + String path = "F:/Desktop/"; + String fileName = path + "学生信息表格" + System.currentTimeMillis() + ".xlsx"; + + ExcelWriter excelWriter = EasyExcel.write(fileName, Student.class).build(); + for (int i= 0; i < 2; i ++) { + WriteSheet writeSheet = EasyExcel.writerSheet(i, "信息"+i).build(); + + excelWriter.write(stuList, writeSheet); + } + excelWriter.finish(); + + } + + /** + * 不同的对象，不同的sheet + */ + @Test + public void repeatedWrite2() { + + List stuList = studentService.selectStuList(); + String path = "F:/Desktop/"; + String fileName = path + "学生信息表格" + System.currentTimeMillis() + ".xlsx"; + + ExcelWriter excelWriter = EasyExcel.write(fileName).build(); + for (int i= 0; i < 2; i ++) { + // Student.class 可以每次都变 + if (i == 0) { + WriteSheet writeSheet = EasyExcel.writerSheet(i, "信息"+i).head(Student.class).build(); + excelWriter.write(stuList, writeSheet); + } + if (i == 1) { + Set excludeColumnFiledNames = new HashSet<>(); + excludeColumnFiledNames.add("stuage"); + WriteSheet writeSheet = EasyExcel.writerSheet(i, "信息"+i).excludeColumnFiledNames(excludeColumnFiledNames).head(Student.class).build(); + excelWriter.write(stuList, writeSheet); + } + } + excelWriter.finish(); + + } + } -- GitLab