Question

我有300多个表要导出到CSV文件。但是我看到乱码。

我发送表名并使用jdbctemplate检索数据，我可以看到数据，但是当我导出时，我看到的是乱码

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下面是代码：

exportData.java

public List getTableData(String tableName){
    return  jdbcTemplate.queryForList("select * FROM " + tableName + " LIMIT 10");
}

创建csv文件

@Autowired
ExportData exportData;

public void CreateCsvData(){

    String tableName = "user_details";
    String folderPath = "/tmp/Data/";

    List data = this.exportData.getTableData(tableName);

    try {
        FileOutputStream fis = new FileOutputStream(folderPath + tableName + ".csv",true);
        ObjectOutputStream os = new ObjectOutputStream(fis);
        for (int i = 0; i < data.size(); i++) {
            os.writeObject(data.get(i));
            os.close();
        }

    } catch (Exception ex) {
        ex.printStackTrace();
    }

}

这是pom.xml

<dependencies>
    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-jdbc -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-jdbc</artifactId>
        <version>2.0.4.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
        <version>2.0.4.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.12</version>
    </dependency>
<dependencies>

我看到了许多resultsetextractor和RowMapper的示例，但是很难为300个表编写模型。

对不起，我不好。我遍历了忘记将其粘贴到此处的对象；

java ObjectOutputStream用乱码创建csv文件

0 个答案: