发现一腾讯 iweibo Java API Bug,Bug 发生于 iweibo API 函数处在 EJB 内,而在非 EJB(如web应用本身、客户端程序等非远程调用),应该是相同的引用在进行比较,则没有引发错误。
BasicAPI.java 文件内比较字符串必须使用String.equals() 函数,而该文件内对字符串比较却使用"=="符号,作为对象而言,这更类似于地址比较,而不是内容比较,故做修改,具体如下:
涉及文件
com.tencent.weibo.api.BasicAPI.java
受影响的函数
public BasicAPI(String OAuthVersion);
public BasicAPI(String OAuthVersion, QHttpClient qHttpClient);
原实现代码,字符串比较采用“==”符号:
public BasicAPI(String OAuthVersion){ if (OAuthVersion == OAuthConstants.OAUTH_VERSION_1 ) { requestAPI = new OAuthV1Request(); apiBaseUrl=APIConstants.API_V1_BASE_URL; }else if(OAuthVersion == OAuthConstants.OAUTH_VERSION_2_A){ requestAPI = new OAuthV2Request(); apiBaseUrl=APIConstants.API_V2_BASE_URL; } } public BasicAPI(String OAuthVersion, QHttpClient qHttpClient){ if (OAuthVersion == OAuthConstants.OAUTH_VERSION_1 ) { requestAPI = new OAuthV1Request(qHttpClient); apiBaseUrl=APIConstants.API_V1_BASE_URL; }else if(OAuthVersion == OAuthConstants.OAUTH_VERSION_2_A){ requestAPI = new OAuthV2Request(qHttpClient); apiBaseUrl=APIConstants.API_V2_BASE_URL; } }
更改后的实现代码,由“==”符号更改为 equals() 函数对字符串进行比较:
public BasicAPI(String OAuthVersion){ if (OAuthVersion.equals(OAuthConstants.OAUTH_VERSION_1) == true){ requestAPI = new OAuthV1Request(); apiBaseUrl = APIConstants.API_V1_BASE_URL; } else if (OAuthVersion.equals(OAuthConstants.OAUTH_VERSION_2_A) == true){ requestAPI = new OAuthV2Request(); apiBaseUrl = APIConstants.API_V2_BASE_URL; } } public BasicAPI(String OAuthVersion, QHttpClient qHttpClient){ if (OAuthVersion.equals(OAuthConstants.OAUTH_VERSION_1) == true){ requestAPI = new OAuthV1Request(qHttpClient); apiBaseUrl = APIConstants.API_V1_BASE_URL; } else if (OAuthVersion.equals(OAuthConstants.OAUTH_VERSION_2_A) == true){ requestAPI = new OAuthV2Request(qHttpClient); apiBaseUrl = APIConstants.API_V2_BASE_URL; } }
修改完毕后重新编译和打包,发布EJB,Web应用调用正常,Bug处理完毕。
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