The example in this section walks through setting up the Spring 3 environment and creating a "Hello world" application that can be integrated into Tomcat.
本节中的例子将演示Spring 3环境的创建过程，并创建一个可以部署到Tomcat中的“Hello World”应用。
Listing 4. Hello, Spring world!
清单4 . Hello、Spring world ！
Hello, it's nice to see you back. How was the Spring Festival?
你好，很高兴看见你回来了。春节过得怎么样？
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