1: 在jsp中写死了options的值, 注意,这时候list后面的"#"必不可少,而且非常重要
<s:select name="ecId" list="#{0:'NDS,1 EC,2 DB2',1:'NDS,4 EC,4 DB2'}" label="Select a EC Type" />
2: 用hashmap来设置值:
在jsp中:
<s:select name="ecId" list="ecMap" listKey="key" listValue="value" headerKey="" headerValue="Select ecType" label="Select a EC Type" />
在java中:
ecMap = new HashMap(); ecMap.put(0, "NDS,1 EC,2 DB2"); ecMap.put(1, "NDS,4 EC,4 DB2");
3: 用bean的list来设置值:
在jsp中:
<s:select name="ecId" list="ecTypeList" listKey="id" listValue="type" headerKey="" headerValue="Select ecType" label="Select a EC Type" />
在java bean文件中设置属性:
private String id; private String type; public EcType(String id,String type){ this.setId(id); this.type = type; } public void setId(String id) { this.id = id; } public String getId() { return id; } public void setType(String type) { this.type = type; } public String getType() { return type; }
在action文件中添加list:
private ArrayList<EcType> ecTypeList; public void setEcName(String ecName) { this.ecName = ecName; } public String getEcName() { return ecName; } public void setEcTypeList(ArrayList<EcType> ecTypeList) { this.ecTypeList = ecTypeList; } public ArrayList<EcType> getEcTypeList() { return ecTypeList; }
第三种方法一定要确定jsp,bean,action三者之间要完全对应,否则会出现下拉框有内容,但显示空白