警告：[unchecked] unchecked調用將（K，V）作爲原始類型java.util.Hashtable localParams.put（name，values）的成員;

Question

我有2警告： - 第一個是：

HELPDESKGESTION2\src\java\glpi\filter\LoginFilter.java:289: warning: [unchecked] unchecked call to put(K,V) as a member of the raw type java.util.Hashtable 
        localParams.put(key, value); 
           ^

- 第二個是：

HELPDESKGESTION2\src\java\glpi\filter\LoginFilter.java:292: warning: [unchecked] unchecked call to put(K,V) as a member of the raw type java.util.Hashtable 
      localParams.put(name, values); 
         ^

守則浩產生這樣的警告是：

public void setParameter(String name, String []values) { 
    if (debug) System.out.println("LoginFilter::setParameter(" + name + "=" + values + ")" + " localParams = "+ localParams); 

    if (localParams == null) { 
    localParams = new Hashtable(); 
    // Copy the parameters from the underlying request. 
    Map wrappedParams = getRequest().getParameterMap(); 
    Set keySet = wrappedParams.keySet(); 
    for (Iterator it = keySet.iterator(); it.hasNext();) { 
     Object key = it.next(); 
     Object value = wrappedParams.get(key); 
     localParams.put(key, value); 
    } 
    } 
    localParams.put(name, values); 
} 

Answer 1

替換：

localParams = new Hashtable(); 

有了：

localParams = new Hashtable<String,String>(); 

我假設你有一個像下面這樣的全局變量：

private Hashtable localParams; 

替換有：

private Hashtable<String,String> localParams; 

如果所做的更改我建議的警告將走開，但你還必須用String替換你的所有Object;