Google Guice 依赖注入方式

　　Google Guice有三种依赖注入方式。

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　　一。Field注入

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package com.template.guice;import com.google.inject.Inject;/** * Created by IntelliJ IDEA. * User: Zhong Gang * Date: 11-8-2 * Time: 下午9:39 */public class CommentServiceImpl implements CommentService {    @Inject    private CommentDao commentDao;    @Override    public void comment() {        commentDao.comment("This is a comment message!");    }}

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　　二。Constructor注入

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package com.template.guice;import com.google.inject.Inject;/** * Created by IntelliJ IDEA. * User: Zhong Gang * Date: 11-8-2 * Time: 下午9:39 */public class CommentServiceImpl implements CommentService {    private CommentDao commentDao;    @Inject    public CommentServiceImpl(CommentDao commentDao) {        this.commentDao = commentDao;    }    @Override    public void comment() {        commentDao.comment("This is a comment message!");    }}

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　　三。Setter注入

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package com.template.guice;import com.google.inject.Inject;/** * Created by IntelliJ IDEA. * User: Zhong Gang * Date: 11-8-2 * Time: 下午9:39 */public class CommentServiceImpl implements CommentService {    private CommentDao commentDao;        @Override    public void comment() {        commentDao.comment("This is a comment message!");    }    @Inject    public void setCommentDao(CommentDao commentDao) {        this.commentDao = commentDao;    }}