38 lines
1.7 KiB
Markdown
38 lines
1.7 KiB
Markdown
# 如何追踪注册在Spring中类实例的方法调用？
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- 引入所需插件
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```xml
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<!-- Spring插件，监控所有Spring托管对象的调用-->
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<dependency>
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<groupId>com.ai.cloud</groupId>
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<artifactId>skywalking-spring-plugin</artifactId>
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<version>{latest_version}</version>
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</dependency>
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```
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- Spring配置文件头部，配置所需的命名空间
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```xml
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xmlns:skywalking="http://cloud.asiainfo.com/schema/skywalking"
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xsi:schemaLocation="http://cloud.asiainfo.com/schema/skywalking
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http://cloud.asiainfo.com/schema/skywalking/skywalking.xsd"
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```
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- 典型Spring配置文件如下
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```xml
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<beans xmlns="http://www.springframework.org/schema/beans"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xmlns:context="http://www.springframework.org/schema/context"
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xmlns:skywalking="http://cloud.asiainfo.com/schema/skywalking"
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xsi:schemaLocation="http://www.springframework.org/schema/beans
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http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
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http://www.springframework.org/schema/context
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http://www.springframework.org/schema/context/spring-context-3.0.xsd
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http://cloud.asiainfo.com/schema/skywalking
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http://cloud.asiainfo.com/schema/skywalking/skywalking.xsd">
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```
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- Spring配置文件中，设置需要追踪包名、类名或方法名。可配置多个
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```xml
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<skywalking:trace packageExpression="com.ai.app.domain.test.*" classExpression="*"/>
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<skywalking:trace packageExpression="com.ai.app.domain.test..*" classExpression="className*"/>
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```
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- 对于方法的追踪，仅限于实例级的public方法。其他方法由于Java运行时原因，无法追踪。
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- 部分类由于被Spring代理后，类名发生变化，可能造成无法追踪
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