最近,我已经为项目添加了新的依赖项来生成.xls文件。
的pom.xml
<dependency>
<groupId>org.jxls</groupId>
<artifactId>jxls</artifactId>
<version>2.0.0</version>
</dependency>
<dependency>
<groupId>org.jxls</groupId>
<artifactId>jxls-poi</artifactId>
<version>1.0.0</version>
</dependency>
代码
public StreamingOutput createStreamedExcelReport(Map<String, Object> params, String templateName, String[] columnsToHide) throws Exception {
try(InputStream is = ReportGenerator.class.getResourceAsStream(templateName)) {
assert is != null;
final Transformer transformer = PoiTransformer.createTransformer(is);
AreaBuilder areaBuilder = new XlsCommentAreaBuilder(transformer);
List<Area> xlsAreaList = areaBuilder.build();
Area xlsArea = xlsAreaList.get(0);
Context context = new PoiContext();
for(Map.Entry<String, Object> entry : params.entrySet()) {
context.putVar(entry.getKey(), entry.getValue());
}
xlsArea.applyAt(new CellRef("Sheet1!A1"), context);
xlsArea.processFormulas();
return new StreamingOutput() {
@Override
public void write(OutputStream out) throws IOException {
((PoiTransformer) transformer).getWorkbook().write(out);
}
};
}
}
不幸的是,它可能会启用jOOQ调试日志记录,这非常糟糕,因为它会记录所有数据库查询。应用程序正在对.xls进行大查询,因此它不应该记录(在3分钟内输出~1.5GB)。
日志示例
08:08:23.094 [http-bio-8080-exec-7] DEBUG org.jooq.tools.LoggerListener - Executing query : select "XXXXXXXX"."XXX", "XXXXXXX"."XXXXXXX" from "XXXXX" where "XXXXX"."XXX" = ?
08:08:23.095 [http-bio-8080-exec-7] DEBUG org.jooq.tools.LoggerListener - -> with bind values : select "XXXXXXXX"."XXX", "XXXXXXX"."XXXXXXX" from "XXXXX" where "XXXXX"."XXX" = 'XXXX.XXXXXXXXXXXXXXXXXXX'
08:08:23.098 [http-bio-8080-exec-7] DEBUG org.jooq.tools.StopWatch - Query executed : Total: 4.17ms
08:08:23.099 [http-bio-8080-exec-7] DEBUG org.jooq.tools.LoggerListener - Fetched result : +----------------------------------------+-----------+
08:08:23.100 [http-bio-8080-exec-7] DEBUG org.jooq.tools.LoggerListener - : |KEY |VALUE |
08:08:23.100 [http-bio-8080-exec-7] DEBUG org.jooq.tools.LoggerListener - : +----------------------------------------+-----------+
08:08:23.100 [http-bio-8080-exec-7] DEBUG org.jooq.tools.LoggerListener - : |xxxx.XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX|0 0 3 * * ?|
08:08:23.100 [http-bio-8080-exec-7] DEBUG org.jooq.tools.LoggerListener - : +----------------------------------------+-----------+
08:08:23.100 [http-bio-8080-exec-7] DEBUG org.jooq.tools.StopWatch - Finishing : Total: 6.756ms, +2.586ms
答案 0 :(得分:6)
默认情况下,jOOQ使用调试日志记录,通过它首先在类路径上发现的这三个日志框架中的任何一个:slf4j,log4j,java.util.logging
。 jxls库通过slf4j as can be seen in its pom.xml依赖于logback:
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.12</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>1.7.12</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>1.1.3</version>
</dependency>
为了关闭jOOQ调试日志记录,您应该相应地配置日志记录框架(in this case: logback)。
您还可以通过指定:
直接关闭jOOQ中的大多数日志记录Settings.withExecuteLogging(false);
有关详细信息,请参阅: http://www.jooq.org/doc/latest/manual/sql-execution/logging
答案 1 :(得分:0)
您可以在依赖项中使用exclusion
以避免使用jooQ日志记录:
<dependency>
<groupId>org.jxls</groupId>
<artifactId>jxls</artifactId>
<version>2.0.0</version>
<exclusion>
<groupId>org.jooq</groupId>
<artifactId>jooq</artifactId>
</exclusion>
</dependency>
<dependency>
<groupId>org.jxls</groupId>
<artifactId>jxls-poi</artifactId>
<version>1.0.0</version>
<exclusion>
<groupId>org.jooq</groupId>
<artifactId>jooq</artifactId>
</exclusion>
</dependency>
注意:您可以从可能依赖于jOOQ日志记录的那个中排除。