如何查找Spring类XML配置属性名及类中成员变量？

Hey there! Let me share some practical, go-to ways to figure out all the configurable properties for a Spring class (like org.springframework.jdbc.datasource.DriverManagerDataSource) when setting up beans in your spring.xml file.

• Check the class's setter methods
  Spring relies on setter injection for bean properties, so any method starting with set (followed by a camelCase name) maps directly to a configurable property. For DriverManagerDataSource, you’ll find methods like setDriverClassName(String), setUrl(String), setUsername(String), and setPassword(String) — these are exactly the properties you’ll use in your XML. Don’t forget to check parent classes too (like AbstractDriverBasedDataSource, which this class extends) — inherited setters are also valid for configuration.

• Use Spring’s official API documentation
  The official Spring API docs for the class will list all public methods, including setters, with clear descriptions of what each property does. You’ll also see which properties come from parent classes, so you don’t miss any inherited configuration options. This is a reliable way to confirm exactly what each property expects.

• Dig into the source code
  If you want the most definitive view, look at the class’s source code. You can pull Spring’s source JARs via Maven/Gradle or view it on GitHub. Look for private member variables (e.g., private String driverClassName;) and their corresponding setter methods. This lets you see every possible property, even ones that might not be emphasized in the docs.

• Leverage your IDE’s auto-completion
  When you’re writing <property name=""/> in your spring.xml, IDEs like IntelliJ IDEA or Eclipse will show a dropdown of all valid property names for the bean class. This is a quick, hassle-free way to get the list without leaving your code editor.

Example Configuration for DriverManagerDataSource #

Here’s how those properties translate to XML:

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    <property name="driverClassName" value="com.mysql.cj.jdbc.Driver" />
    <property name="url" value="jdbc:mysql://localhost:3306/mydb" />
    <property name="username" value="root" />
    <property name="password" value="password" />
</bean>

内容的提问来源于stack exchange，提问作者Srinath S