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本项目主要弥补在使用mybatis3+springmvc+jquery easyui快速搭建web应用系统是遇到的框架不足.
主要工作包括：
1，扩展了ApplicationContextAware，通过单例注入spring容器，提供spring容器外的bean获取方法
2，扩展了apache shiro框架，统一了安全结构
3，扩展了mybatis3拦截器，在两个拦截器中自动完成分页注入，实现内存分页。
4，分页设计数据库方言
5，提供了一个easyuigrid的模型
6，提供了java泛型的jstl
7， xml工具包等一些小工具
The newest version!
package net.sourceforge.jweb.jstl.helper;
import java.beans.BeanInfo;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Map.Entry;
import javax.servlet.jsp.JspException;
import net.sourceforge.jweb.annotation.Attribute;
import net.sourceforge.jweb.util.FreeMarkerUtil;
public class JstlUtil {
private JstlUtil() {
}
/**
* 转换为使用单引号的json字符串,
*
* @param map
* @return
*/
@SuppressWarnings({ "unchecked", "rawtypes" })
public static String jsonify(Map map) {
StringBuilder builder = new StringBuilder(map.size() << 4);
builder.append("{\n");
for (Entry entry : map.entrySet()) {
builder.append(entry.getKey()).append(":");
if (entry.getValue() instanceof Map) {
builder.append(jsonify((Map) entry.getValue()));
} else if (entry.getValue() instanceof Collection) {
builder.append(jsonify((Collection) entry.getValue()));
} else {
builder.append(entry.getValue());
}
builder.append(",");// ' is included in value object
}
if (map.size() > 0) {
builder.delete(builder.length() - 1, builder.length());// last ,\n
}
builder.append("}\n");
return builder.toString();
}
public static String jsonify(Collection> array) {
StringBuilder builder = new StringBuilder(array.size() << 5);
builder.append("[");
for (Map element : array) {
builder.append(jsonify(element)).append(",");// ' is included in value object
}
if (array.size() > 0) {
builder.deleteCharAt(builder.length() - 1);// last ,
}
builder.append("]");
return builder.toString();
}
/**
* 根据数据的类型自动判断水平对齐方式
*
* @param typeName
* @return
*/
public static String getAlignment(String typeName) {
String align = "'left'";
if ("Date".equals(typeName)) {
align = "'center'";
} else if ("String".equals(typeName)) {
align = "'left'";
} else {// 数字居右
align = "'right'";
}
return align;
}
/**
* 反射Tag对象字段，保存到map便于freemarker运行模板
*
* @throws JspException
*/
public static Map tagAttibuteMap(Object obj) throws JspException {
Map properties = new LinkedHashMap<>();
try {
BeanInfo tagBeaninfo = Introspector.getBeanInfo(obj.getClass());
PropertyDescriptor[] tagProperties = tagBeaninfo.getPropertyDescriptors();
JstlUtil.sortAsNaturalOrder(tagProperties, obj.getClass());
for (PropertyDescriptor descriptor : tagProperties) {
Method readMethod = descriptor.getReadMethod();
Method writeMethod = descriptor.getWriteMethod();
if (readMethod == null || writeMethod == null) {
continue;
}
// just put attributes of this class's same package
String classOfMethod = readMethod.getDeclaringClass().getName();
if (!classOfMethod.startsWith(obj.getClass().getPackage().getName())) {
continue;
}
String name = descriptor.getName();
Object value = JstlUtil.getValue(descriptor.getReadMethod(), obj);
if (value != null) {
properties.put(name, value);
}
}
} catch (Exception e) {
e.printStackTrace();
throw new JspException(e);
}
return properties;
}
/**
* 反射字段，以字符串方式打印给js,主要需要检查是否需要js的字符串 ' "
*
* @param method
* @param obj
* @return
*/
public static Object getValue(Method method, Object obj) {
try {
Object value = method.invoke(obj);
if (value != null) {
if (value instanceof String) {
String quote = "'";// 默认是单引号
Attribute attrAnnotation = method.getDeclaredAnnotation(Attribute.class);
if (attrAnnotation != null) {
quote = attrAnnotation.quote();
}
return quote + value.toString() + quote;
} else {
return value;
}
}
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
e.printStackTrace();
}
return null;
}
public static Object getNaturalValue(Method method, Object obj) {
try {
return method.invoke(obj);
} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
e.printStackTrace();
}
return null;
}
/**
* 使用BeanInfo读取的属性是字母排序，因此这里按照字段的自然编码顺序排序，尽量保证HTML上的表格和数据库一致
*
* @param alphabetOdered
* @return
*/
public static PropertyDescriptor[] sortAsNaturalOrder(PropertyDescriptor[] alphabetOdered, Class clazz) {
Field[] fields = clazz.getDeclaredFields();
Map naturalOrderMap = new HashMap<>();
int i = 0;
for (Field f : fields) {
naturalOrderMap.put(f.getName(), i++);
}
Arrays.sort(alphabetOdered, new java.util.Comparator() {
@Override
public int compare(PropertyDescriptor o1, PropertyDescriptor o2) {
int order1 = 0;
int order2 = 0;
if (naturalOrderMap.containsKey(o1.getName())) {
order1 = naturalOrderMap.get(o1.getName());
}
if (naturalOrderMap.containsKey(o2.getName())) {
order2 = naturalOrderMap.get(o2.getName());
}
return order1 - order2;
}
});
return alphabetOdered;
}
/**
* 从字段类型生成默认的editor配置
*
* @param fieldTypeName
* @return
*/
public static Map defaultDataGridEditor(String fieldTypeName) {
Map ret = new LinkedHashMap<>();
fieldTypeName = fieldTypeName.toLowerCase();
String editorType = "textbox";
Map options = new LinkedHashMap<>();
options.put("required", "false");
switch (fieldTypeName) {
case "byte":
case "short":
case "int":
case "long":
case "biginteger":
editorType = "numberbox";
break;
case "float":
case "double":
case "decimal":
case "bigdecimal":
options.put("precision", "2");
editorType = "numberbox";
break;
case "date":
case "calendar":
editorType = "datebox";
break;
case "boolean":
// use Y/N combox
editorType = "combobox";
options.put("valueField", "'value'");
options.put("textField", "'text'");
options.put("data", "[{value:'Y',text:'是'},{value:'N',text:'否'}]");
break;
}
ret.put("type", "'" + editorType + "'");
ret.put("options", options);
return ret;
}
/**
* 从字段类型生成默认的过滤器的配置 Create and enable filter functionality. The 'filters'
* parameter is an array of filter configuration. Each item contains following
* properties: 1) field: the custom rule on. 2) type: the filter type, possible
* values are:
* label,text,textarea,checkbox,numberbox,validatebox,datebox,combobox,combotree.
* 3) options: the options of the filter type. 4) op: the filter operation,
* possible values are:
* contains,equal,notequal,beginwith,endwith,less,lessorequal,greater,greaterorequal.
*
* Code examples
*
* $('#dg').datagrid('enableFilter'); $('#dg').datagrid('enableFilter', [{
* field:'listprice', type:'numberbox', options:{precision:1},
* op:['equal','notequal','less','greater'] }]);
*
* @param fieldTypeName
* @return
*/
public static Map defaultColumnFilter(String filedName, String fieldTypeName, String gridId) {
Map ret = new LinkedHashMap<>();
ret.put("field", "'" + filedName + "'");
fieldTypeName = fieldTypeName.toLowerCase();
String editorType = "textbox";
Map options = new LinkedHashMap<>();
switch (fieldTypeName) {
case "byte":
case "short":
case "int":
case "long":
case "biginteger":
options.put("precision", "0");
editorType = "numberbox";
break;
case "float":
case "double":
case "decimal":
case "bigdecimal":
options.put("precision", "2");
editorType = "numberbox";
break;
case "date":
case "calendar":
editorType = "datebox";
break;
case "boolean":
// use Y/N combox
editorType = "combobox";
options.put("panelHeight", "'auto'");
options.put("valueField", "'value'");
options.put("textField", "'text'");
options.put("data", "[{value:'Y',text:'是'},{value:'N',text:'否'}]");
break;
}
ret.put("type", "'" + editorType + "'");
// onchange
String onchange = FreeMarkerUtil.processTemplate("datagrid-filter-onchange.fmt", "filedName", filedName,
"gridId", gridId);
options.put("onChange", onchange);
ret.put("options", options);
if (editorType.contains("text")) {
ret.put("op", "['contains','beginwith','endwith']");
} else if ("boolean".equals(fieldTypeName)) {
ret.put("op", "'equals'");
} else {
ret.put("op", "['equal','notequal','less','lessorequal','greater','greaterorequal']");
}
return ret;
}
public static Object getDefaultWidth(String fieldTypeName) {
switch (fieldTypeName) {
case "byte":
case "short":
case "int":
case "long":
case "biginteger":
return 100;
case "float":
case "double":
case "decimal":
case "bigdecimal":
return 150;
case "date":
case "calendar":
return 150;
case "boolean":
return 50;
}
return 100;
}
}