javacsv导出csv

1、目录结构



2、准备jar包,javacsv.jar

3、csvTest.java类

package com.hhj.csv;

import java.io.File;
import java.io.FileOutputStream;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;

import com.csvreader.CsvWriter;

public class CSVTest {
public static void main(String[] args) throws Exception {

File file = new File("F:/test.csv");
CsvWriter wr = new CsvWriter(new FileOutputStream(file), ',',
Charset.forName("GB18030"));

List<User> list = new ArrayList<User>();

User user = new User();
user.setAccount("001");
user.setName("123");
user.setTel("11111");
list.add(user);

User user1 = new User();
user1.setAccount("002");
user1.setName("456");
user1.setTel("22222");
list.add(user1);

User user2 = new User();
user2.setAccount("003");
user2.setName("66");
user2.setTel("vvvv");
list.add(user2);

StringBuilder sbBuilder = new StringBuilder();
for(int i=0;i<list.size();i++) {
sbBuilder.append(list.get(i).getAccount()+",");
sbBuilder.append(list.get(i).getName()+",");
if (i == list.size()-1){
sbBuilder.append(list.get(i).getTel());
break;
}
sbBuilder.append(list.get(i).getTel()+"\n");
}
System.out.println(sbBuilder.toString());
wr.writeComment(sbBuilder.toString());
wr.close();
}
}


4、user类
package com.hhj.csv;

public class User {
private String account;
private String name;
private String tel;

public String getAccount() {
return account;
}
public void setAccount(String account) {
this.account = account;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getTel() {
return tel;
}
public void setTel(String tel) {
this.tel = tel;
}
}


总结：javacsv体积较小，如果需要一些简单的数据的话可以使用这种方式，如果比较复杂的数据，不太建议使用。